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The last question is the famous question answered by feynman, that one should neither choose the path completely by water or completely by land. Although the speed of the person will be more on land but if the path length is more it will slow down the person so person should go on the path some by land and some by water the same phenomenon takes place with light in the form of refraction.
"Hamare education system hamko ratate hen, hmko concept Nhi smjhate or exam me conceptual question puche jate hen" ..... He said the reality Every Student of India may searching for..
Edit -there is also use of concept of metabolism of living organisms to maintain body temperature, heating effect of electric current ,entropy ,law of conservation of energy, heat produced due movement of practical
Last answer : he will travel faster on the land where air is the medium on the other hand incase of water the fluid friction will take place which is directly proportional to the speed of the object , second reason could be the density of both the mediums (even light travel slow in water ) this also justify my answer
@@Best_Deals87 as i said about fluid friction the more he try to accelerate the more he face fluid friction but in case of running on land there is no such force applicable on him except the wind which could be in his favour or against
@@khushbooyadav2463 the sand which came in the contact of the water have became solid , so incase if he follow the path of sea shore then it would be far easier to run
Liquid crystal becomes opaque when electricity is passed through it . It also have one more property it makes the vertical light rays horizontal and horizontal light rays vertical4:30
जिस रूम में पंखा चालू किया जाता है उस रूम में वायु में उपस्थित अणुओं की गति बढ़ जाती है जिसके कारण उस रूम की वायु भी गरम हो जाती है जिसके कारण वह रूम गरम हो जाता है । जय हिंद
Bro maine to jee class 11 ka module order kiya tha par careless ke wajah se neet ka mila Mana ki wo desh badalna chahte hai lekin uske sath unko carefull banna hoga 😭
He take path from land than swim in water a bit as we run faster than swimming ......(I learnt it in my light chapter as light also take the fastest path ) my knowledge worth
No because the speed of the lifegaurd will decrease if he will go through water as he will have to swim instead he can run and reach at the same point in less time.
bro that's exactly same conceptual solution to a famous problem called "river boat problem" for crossing river in least time . (class 11th cbse physics.. motion in two dimension.)😁
Answer of 5th question : Best option will be to go from water, as we can see that man is far from rescuer then it means water is flowing in same direction the man is. So he can go through water, the water will push him at same speed as the survivor is flowing at and he can put his own force in same direction then he will reach the survivor. Whereas, by going from land we will face many obstructions like trees and rocks will come and also he wouldn't be able to run fast due to life saving equipments in his hand. And also river speeds are usually fast. So best option is to go from water.
River flow kar rahi hogi toh usme straight line pr swim karne se path deviate hogi aur us deviation ko equalise krne ke liye thodi upper stream trajectory se shuruwat karni hogi.. 🏆👍 these problems are also addressed as river problems 🔥
The last question is the famous question answered by fenyman, that one should neither choose the path completely by water or completely by land. Although the speed of the person will be more on land but if the path length is more it will slow down the person so person should go on the path some by land and some by water the same phenomenon takes place with light in the form of refraction.
In last question person 1 should cover the distance through land and when he is exactly perpendicular to the second person he should move through water ,if he cover most of the distance through water his velocity will be less on contrary his velocity when he was moving on land Same principle occurs in the phenomenon of' refraction of light'
I wana add one point to this first this also my answer but with an extra point that if go through water his body will be facing opposing force of but if he goes through land then his body face air's opposing force so he should go through land🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥
Hnn Bhai and D1 < D2..mtlb land ke trough wo jayega toh usse sirf( air) face karna hoga. Aur water way SE jayega toh usse( byuont force+ air ) dono face karna hoga
The Reason is.. Because when we go by D1 i. e. Water, then when we swim a pressure is acting on us from the bottom of the Water. So, we have to apply more force to reach at any place and that also with less speed, Whereas, when we go from land if our force to reach anywhere will be less, then also speed will be more because no pressure is acting on us when we move from land ( Remember the pressure i. e. Gravity only acts on us when we are not on the surface of the earth )
First fan rotate hota ha toh uska bich ka hissa gram ho jayega magar second fan nahi chlta toh voh temperature normal rakheka because fan ac nahi ha ki room cool kar de
You explain topics and their concepts very well so please can you make a video on MIRROR AND LENSE FORMULA FOR MIRROR AND LENSE RESPECTIVELY, SNELL'S LAW AND POWER OF LENSE PLEASE SINCE I can't BUILD my concepts
Sir I want u as my physics teacher ...❤after watching your vdos people will definitely fall in love with science....get set go sir on ur goal🤟u r just rocking 🤙
Last question ka answer - land path is ok because water is denser than air and travel through air on land helps you to travel faster😎🧐🧐, sorry for jumbled bakwas english but i mean longer path is faster to travel😅
🤔 from the experience of bgmi btw ... But still scientific explanation - flowing in water includes a resistive force called viscosity which reduces the speed of a person moving water even if he tries to move just as he moves on ground Hence from top of mountain is a better choice
@@domnique9709 Dude it's beach and waves come and splash at the beach which is basically in the opposite direction of the motion towards the teenage boy drowning and also how could there be a river near a beach it's always a sea or ocean
My dear,He have to choose path of la你的 We can see direction of water and speed of the man speed will be more on land compare to water by seeing two way's may be path of water 💧
Answer will be incomplete if speed in both medium (water/land) is unknown. There will be similar relation as of light while changing medium.... LIGHT ALWAYS FOLLOW DIATANCE OF SHORTEST TIME...
Last question is very famous question mix concept of differential equations and relative motion in different medium . This case is also given in class 12th NCERT example of chapter ray optics to explain the concept of speed of light in different media .. the boy will neither follow complete water route because speed of boy in water will be less than in land nor he will completely follow land because the two routes will form a triangle and the sum of two smaller side of triangle is always greater than third one .. he will partially follow both land and water route which will depend upon there values after doing differentiation minima concept
bro that's exactly same conceptual solution to a famous problem called "river boat problem" for crossing river in least time . (class 11th cbse physics.. motion in two dimension.)😁
@@srijall u r right but i said that same concept of achieving minimum time is given more importance than distance is more or less. Concept: It is not necessary that to achieve least time we should travel a smaller distance.unlike in river boat problem we have to get to other side in least time for we have to travel diagonally instead of straight.WE need to travell diagonally because we dont want to waste our energy in overcoming the velocity of River. :) Now in this problem of guard and drowning man . I the coast guard want get minimal time rather than minimum distance(time is given more priority because he is drowning). For this the coast guard will run along the beach (its obvious that you can run faster on sand than swimming in water)untill he reaches the perpendicular to victim then he will swim towards the victim an save him. Hopefully you understand this now. (1 like for my thumb's 👍👍 the did an awesome job...)
wth ... isme differential equations kyou lagana hei differentiation se bhi ho jayega na !!! isme manalo ki ham x1 distance v1 speed se land pe chale aur x2 distance v2 speed se pani me ... to t1=x1/v1 and t2=x2/v2 ... aur total time T = t1+t2 ... aur fir d(T)/dx1 = 0 karke hame x1 ka value mil jayega ... usse x2 nikaleg ... 2nd approach) light hamesha short time me jane ka try karta hei ... to ham REFRACTION ka use kar sakate hei ... jeise ki ek light ray life guard ke yahase emit ho rhi hei aur wo kuchh X distance jake pani se refract ho rhi hei ... aur ham uske incident angle ko approximately 90⁰ maan sakate hei .. aur ham snell's law (u1sintheta1=u2sintheta2) se refracted ray ka angle with border nikal sakate hei .. aur ham uss ray ko victim se pass karwa sakate hei ... and we know that u1/u2 = V2/V1 (u is refractive index) ... usse hame X ka value nikal jayega :)
Answer for the question:- swimming through the water will make the lifeguard slower so the lifeguard must take the road to reach the teenager as early as possible and save him .
I'm sure gaurav was a commerce student but afterwards he found science interesting or maybe any other reason ,that's why he explain science so well. Keep it up. GURU JII 🥳
10:08 can we explain that when Fan is running then The molecules of Gas are displaced...their is transfer of momntm also...so, due to speed.. Kinetic energy of Molecules will increase.. then their will obviously be generation of heat due to their collision..hence room 1 will be warmer 🤷🏻
His videos are like unknown islands expedition all fact are unknown for I learned many things from his channel that I came to state level quiz thanks bro😘😘😍😍
@@daruwaladost-s4u foreign youtubers ki videos ko hindi me masaala. Lagaa ke dikhaa rha hai bakchodi ke saath, issey 2-4 physics ki problem agar puch li to fatt jaayegi iski.
@@Manish_254 hum bharathiyo ko English wali facts physics science Hindi main pata raha hai toh jo kisko be English nahi atha toh woh Hindi main sekenge.....😉😉🤗🤗😂😗😒
The last question's answer- The boy should go through the land area because it would require more energy to him to go through the water than the land and thus consume more time.
If u want to go from D1 to D2 u should use the way by ground(in straight line) if u travel from water, water increase drage so using the way by ground is better and faster way
I am in 12 th standard and l have all the topics that are in your questions but l really get cleared of that concepts .l love your channel brother thanku for having the informative channel for us❤️
@@PranavYadav21 agar life guard pani me se sidhe jayega to pani ka flow use oppose karega to use sidhe n jakar pani me dusare point se yani tircha janaa chahiye
No as compared to land water would be easier to get through as In swimming, the force produced by the swimmer is equal to the mass of the swimmer multiplied by the acceleration of the swimmer in the water. Do it's better and easier & uses lesser time to save the person in the point D2
When the wave hits the boy either it will throw him in the sand or it may take him more away from the land. In my opinion the coast guard might try to run through land, but factors like friction will work accordingly as walking in sand is very difficult. But a coast guard must be well trained to cope up with the situation.
bro that's exactly same conceptual solution to a famous problem called "river boat problem" for crossing river in least time . (class 11th cbse physics.. motion in two dimension.)😁
So friends, kitne sawaalon ke jawab aap de paye without any help? Sahi sahi batana satyavadi Harishchandra banke in comments section - Jai Hind!
Aur haan, Win Upto 1 Crore worth Scholarship, Register now with these links, Download the Unacademy App now: Class 6th: unacademy.onelink.me/k7y7/72649b58 Class 7th: unacademy.onelink.me/k7y7/f60f423a Class 8th: unacademy.onelink.me/k7y7/79cd8cf Class 9th: unacademy.onelink.me/k7y7/947f5d8d Class 10th: unacademy.onelink.me/k7y7/472a9acb Class 11th: unacademy.onelink.me/k7y7/1d5b1142 Class 12th: unacademy.onelink.me/k7y7/b802cac Use FLY to enroll for FREE, also get 10% off on any subscription with using the same!
Hi
Big fan sir
Osm Facts Video Bro 👌👌🤩
Big fan
Superb🤟🤟 aur bhai ekdam rowdy lagrahe ho
When he started his channel he was so innocent but now he is rocking in his channel like a boss 🔥🔥
True bhai Tu badal gya hai re gaurav😂
@@OPINFINITEgaming yes🤣😂
@@OPINFINITEgaming 😂😂😂😂
Hmm u are right gaurav is very good UA-camr
Yes bro i also agree
Only two things are missing in our education system. First education and second system.😂😂😂🤣
Sahi bola bhi in dono ke alava sab kuch ha jese ratana 😂😂😂😂😂
🤣🤣
😂
Lol😂🤣
But bakchodi is fully present 😂🤣 .
Brain - " mera use karo re"
School - " tu Kya hamse jyada hoshiyar hai Kya, chup chap ratta mar next month exam hai"
😅😂
What's funny
@@Silentkiller-zp1jt I think you are happy with our education system 😏
@@RushikeshTekale-pg8vk actually I am from Pakistan and I also love india . I am not happy with our education system of whole world .
😂
Yeah bro harek school meh yehi hota heh😥😥Bakwas education system
He explains far better than my Physics teacher 😁😁
MY PHYSICS TEACHER TEACHES US LIKE HE CAME TO SCHOOL AFTER FIGHTING WITH HIS WIFE AT HOME
@@piano_ghoul my chemistry teacher do the same😐
🤭🤭🤭😁
🎉🎉🎉🎉
I want Gaurav sir as my physics teacher 😍
I also
Pehle kuch din I ache lagenge
Abe wo kuch slected questions ki taiyari karke aata ha.usse bahar usko khud v koi idea nahi hoga..
@@54rishi to mejhe bata hamare teachers ko kahaan sab kuch pata hota he wo bhi to uski tayyari karke aate he na
For me all 3 parts
The last question is the famous question answered by feynman, that one should neither choose the path completely by water or completely by land. Although the speed of the person will be more on land but if the path length is more it will slow down the person so person should go on the path some by land and some by water the same phenomenon takes place with light in the form of refraction.
👏👏👏👏
mera bhi yhi ans h..
Amazing 👏👏
No answer is d1 here simple kinematic water hcv questions
Are apko hindi nhi aati h kya
Teacher: why doctors wear a mask when they do an operation?
Student: For safety. If the patient dies, others can't find out who did the operation.
Dost me bhi video banane me bahut mehnat kar rha hun jo bhi mera comment pad raha please ignore mat karna 🙏🥺🥺🥺k
YAHA BHI AA GYA
@@asrafulmolla2449 aapki maa ki Umar kitni honi chahiye
Ignore-40years 😰😰
Subscribe to me -120years 💝💝
@@zhaxo3536 bhag ja
@@zhaxo3536 LOL🤣🤣🤣
"Hamare education system hamko ratate hen, hmko concept Nhi smjhate or exam me conceptual question puche jate hen" .....
He said the reality Every Student of India may searching for..
God level editing 😎
Dosto me bhi video banane me bahut mehnat kar rha hun jo bhi mera comment pad raha please ignore mat karo ❤️💖🥺🥺🥺🥺💖p
@@NcVoiceOver. Don't worry you will have more subscribers
@@Iamno1_hehe support karne ke liye thanks bhai 🙏🙏💖💖
🎉🎉🎉🎉
I have subscribed his both channels and i watch there all videos they are so adicted 😜😍
Last question was easy if you know the law's of thermodynamics 😅
Oh I don't
Your profile picture tho....😂😂
Edit -there is also use of concept of metabolism of living organisms to maintain body temperature, heating effect of electric current ,entropy ,law of conservation of energy, heat produced due movement of practical
Wow dude
🏃♀️ is 🚄 to 🏊
Last question :
Life guard should choose land path because it will be easier to travel on land comaparative to water because of friction
Legend channel 🔥
Bhai aapka bahut badaa fan 😍😘😘😘😘
Love your channel
Bhai would u like to do 1 v 1 with me
Ronaldo dedo😂😂
Sahi kaha bro😆
"The Human Brain is Super Complex And Advanced"
- The Human Brain
@Tejas Dhure lol
@Tejas Dhure me is a illusion created by me
a human brain
i am intelligent too
🎉🎉🎉
Last answer : he will travel faster on the land where air is the medium on the other hand incase of water the fluid friction will take place which is directly proportional to the speed of the object , second reason could be the density of both the mediums (even light travel slow in water ) this also justify my answer
He is Swimmer or Life Guard who is Better in Water and on Land, there is Sand ⌛ so he can't Run on Land as Fast as in Water 🌊
🙄
Yes 👍 he is right it's sand not land
@@Best_Deals87 as i said about fluid friction the more he try to accelerate the more he face fluid friction but in case of running on land there is no such force applicable on him except the wind which could be in his favour or against
@@MythicGamingyt He is genius
@@khushbooyadav2463 the sand which came in the contact of the water have became solid , so incase if he follow the path of sea shore then it would be far easier to run
Liquid crystal becomes opaque when electricity is passed through it .
It also have one more property it makes the vertical light rays horizontal and horizontal light rays vertical4:30
जिस रूम में पंखा चालू किया जाता है उस रूम में वायु में उपस्थित अणुओं की गति बढ़ जाती है जिसके कारण उस रूम की वायु भी गरम हो जाती है जिसके कारण वह रूम गरम हो जाता है । जय हिंद
@Md Shahnawaz Alam भाई वो इसलिए क्योंकि जब हमे पसीना आता है तो पंखा उस पसीने का वस्पीकरण कर देता है जिस कारण हमे ठंडी हवा की अनुभूति होती है 😂😂😂😂👌
@Md Shahnawaz Alam to bhai aapke waha baarish hui hogi jisse thandi hawa mil rhi hai 😂😂😂😂😂
But physics wallah change the indian whole study system who agree with me😄
Yup bro ALAKH SIR OP 💓
Bro maine to jee class 11 ka module order kiya tha par careless ke wajah se neet ka mila
Mana ki wo desh badalna chahte hai lekin uske sath unko carefull banna hoga 😭
@@Harsh_Raj820 😂😂BRO mera to LAKSHYA JEE ka hi aaya tha or whi mangaya tha thoda upr niche hota h bro kabhi babaar 😁
Alakh sir oppp
He take path from land than swim in water a bit as we run faster than swimming ......(I learnt it in my light chapter as light also take the fastest path ) my knowledge worth
Yeah ur right even I came to answer the same😀
@@warriorjethu6057 great bro
Even I thought the same
I learnt it from Pubg water town area 😂😂
@@ayanokojikiyotaka3431 Chalo kahi to kaam aaya bgmi khelna. Same bro😂
No because the speed of the lifegaurd will decrease if he will go through water as he will have to swim instead he can run and reach at the same point in less time.
Dosto me bhi video banane me bahut mehnat kar rha hun jo bhi mera comment pad raha please ignore mat Karna 💖🥺🥺🥺🥺🥺🥺🙏 lz
@@NcVoiceOver. bro Maine subscribe kr liya 😊😊
@@ashutoshyadav3059 thanks bhai 💖
bro that's exactly same conceptual solution to a famous problem called "river boat problem" for crossing river in least time .
(class 11th cbse physics.. motion in two dimension.)😁
@@from_the_elites_- par me to 7th me hu par mera answer sahi tha
ANSWER: water medium will make his speed slower than running on road and then rescuing him
Yes , helpful
Kyuki water flow kar raha ha aur woh uska distance bara denga
D1= By swiming
D2= By land
D2 is the answer because we can run faster than swim in opposite direction of waves of ocean so D2 is the ri8 answer ☺️
It's sand not land
Its like 🏔️ mountain
Uspe kaise bhago ge
@@visibletoallusersonyoutube3856 agar vo mountain ki taraha hai to dubne wala ladka apne ap guard ke taraf bahate hua aye gana🤪
Yes it is correct 👍🏻👍🏻💯
big brain bro@@nakulnimbekar
Answer of 5th question : Best option will be to go from water, as we can see that man is far from rescuer then it means water is flowing in same direction the man is. So he can go through water, the water will push him at same speed as the survivor is flowing at and he can put his own force in same direction then he will reach the survivor. Whereas, by going from land we will face many obstructions like trees and rocks will come and also he wouldn't be able to run fast due to life saving equipments in his hand. And also river speeds are usually fast. So best option is to go from water.
"The Human Brain is Super Complex And Advanced"
- The Human Brain
Jee students be like : ya I know that all 😂
im also jee aspirant . ur all answers was correct ????
@@FAKEvsREAL20 no
@@ayushbangar1955 don't lie bro 😂😂
Yes
If all you know than you don't belong to jee you belongs to MIT 😉
Aree yaar kaash aap hi hamare science teacher hote school me maja hi aa jata ❤️
Beta school main larkion se dehan hatee to app ko Apne school teacher ki Baat samaj aye.
River flow kar rahi hogi toh usme straight line pr swim karne se path deviate hogi aur us deviation ko equalise krne ke liye thodi upper stream trajectory se shuruwat karni hogi.. 🏆👍 these problems are also addressed as river problems 🔥
The last question is the famous question answered by fenyman, that one should neither choose the path completely by water or completely by land. Although the speed of the person will be more on land but if the path length is more it will slow down the person so person should go on the path some by land and some by water the same phenomenon takes place with light in the form of refraction.
Yes you are correct✅
Correct
google se ratta marke aaye ho
Going on land is better in the way of water buoyancy force works on human and we can't go faster in water than air.
Right way is go on land.
We can't go faster in water because H20 molecules are heavier than O2,N,CO2,CO,H, molecules present in air.
4:10 Japan also has such transparent bathrooms which turn opaque when someone enters into those.
A2 sir
Are pr kbi glti se eo bar bi technical glitch agaya to 😂 .. wse bi india me technical issue bht ate hai 😂 bahaane
In last question person 1 should cover the distance through land and when he is exactly perpendicular to the second person he should move through water ,if he cover most of the distance through water his velocity will be less on contrary his velocity when he was moving on land
Same principle occurs in the phenomenon of' refraction of light'
I wana add one point to this first this also my answer but with an extra point that if go through water his body will be facing opposing force of but if he goes through land then his body face air's opposing force so he should go through land🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥
And that force is known as buoyant force..
Exactly
Hnn Bhai and D1 < D2..mtlb land ke trough wo jayega toh usse sirf( air) face karna hoga. Aur water way SE jayega toh usse( byuont force+ air ) dono face karna hoga
Nooo its absolutely Wrong
The Reason is.. Because when we go by D1 i. e. Water, then when we swim a pressure is acting on us from the bottom of the Water. So, we have to apply more force to reach at any place and that also with less speed, Whereas, when we go from land if our force to reach anywhere will be less, then also speed will be more because no pressure is acting on us when we move from land ( Remember the pressure i. e. Gravity only acts on us when we are not on the surface of the earth )
First fan rotate hota ha toh uska bich ka hissa gram ho jayega magar second fan nahi chlta toh voh temperature normal rakheka because fan ac nahi ha ki room cool kar de
🤣
But one of them is rotating
I am noticing Gaurav chest hair😂😂
Baal diwas ki shubhkamnayein!
@@GetSetFly 😂😂😂😂😂🤣🤣🤣🤣😂😂😂😂
"Never give up. Today is hard tomorrow will be worse. But the day after tomorrow will be sunshine"
Aapne Dubai rich waali video pe b same comment kiya tha.
Good luck bro
But when tomorrow comes it becomes "Today" and day after tomorrow becomes "Tomorrow" and the whole thing continues , thus Sun will never shine😁
@@Letsgo-wq8my 😂😂
@@Letsgo-wq8my 😁
Nice one!
You explain topics and their concepts very well so please can you make a video on MIRROR AND LENSE FORMULA FOR MIRROR AND LENSE RESPECTIVELY, SNELL'S LAW AND POWER OF LENSE PLEASE SINCE I can't BUILD my concepts
Happy birthday sir.......wish a very very happy returns of this day..........
Gaurav looks so handsome in shirt...❤️😘😍
Thanks bro :)
@@GetSetFly bhai reply dedo 😥
@@GetSetFly literally I am crying right now as I am watching his channel since last 2 years and now I got his reply and 💓.........love you bro 😍
@@GetSetFly by the way many happy returns of the day ...hope your next year will bring more joy and success to your life ...HAPPY BIRTHDAY BRO😘😍
@@GetSetFly maine bhi same comment kiya hai........but unfortunately mujhe kuch nhi mila babu bhaiya......
4:45 aila ye to maine 12th me chemistry ke 1st chapter me padha tha SOLID STATE par aisa concept kisine nahi padhaya !..
Sir I want u as my physics teacher ...❤after watching your vdos people will definitely fall in love with science....get set go sir on ur goal🤟u r just rocking 🤙
It's videos not vdos😂😂
Understand his feelings not his words
@@dazzlingldhruv3544 Yep
Gaurav sir, you are better teacher than any of my school teachers. Love you bro❤.
@MD Ramim Talukder ⭐ sahi hai bhai
7:18 bhai refractive index ki value 1 se kabhi kam nahi ho sakti
gaurav sir ki video dekhe bina time hi nahi nikalta
@@GetSetFly Thank You Gaurav Sir Mee na itna khush hu Thank you sir for giving me heart
🎉🎉🎉🎉
We will go first by land,then jump into water because though it's not a straight route yet we can run on land faster than we can swim in water.😎
@jiyad nahi ky uki water apane motion ko oppose karegisiliye speed slow ho jaayegi..
Last question JEE-advance 2005 ya 2006 ka question h......
Isme hame integration krna hota h so answer is D1 EASY.....
ohh
Last question ka answer - land path is ok because water is denser than air and travel through air on land helps you to travel faster😎🧐🧐, sorry for jumbled bakwas english but i mean longer path is faster to travel😅
No problem bro your national language is Hindi so it is secondary language where mistakes not matter.
🤔 from the experience of bgmi btw ... But still scientific explanation - flowing in water includes a resistive force called viscosity which reduces the speed of a person moving water even if he tries to move just as he moves on ground
Hence from top of mountain is a better choice
Right
Same thinking
What if it's a river flowing in the same direccion you want to move
@@domnique9709 Dude it's beach and waves come and splash at the beach which is basically in the opposite direction of the motion towards the teenage boy drowning and also how could there be a river near a beach it's always a sea or ocean
When BGMI Players Got More IQ Than Normal Humans 👀
I am first liker I from gohana sonepat ❤️
My dear,He have to choose path of la你的
We can see direction of water and speed of the man speed will be more on land compare to water by seeing two way's may be path of water 💧
9:09 that animation lol 😂😂
Happy Birthday Gaurav Bhai 🎉🎊🎊🎉
Thank you brother
Happy birthday in advance Gaurav bhaiya 🥳🥳🥳🥳
Advance nahi. Sahi time par hi wish kiya hai. Thanks :)
@@GetSetFly happy birthday..
@@GetSetFly happy birthday gaurav bhaiya plz reply
@@GetSetFly I watch all your videos and subscribed your channel thanks for providing so much knowledge.
@@GetSetFly Happy Birthday Sir 🥳🥳❤️.No words to say something but ur best
Answer will be incomplete if speed in both medium (water/land) is unknown. There will be similar relation as of light while changing medium.... LIGHT ALWAYS FOLLOW DIATANCE OF SHORTEST TIME...
Last question ans is Relative Velocity So Life Guard Should Swim In Straight line rather than Displacement
@@jagritarora5746 Dear Sir Please Research About relative Velocity
@deepanshu Gautam Thanks Dear Hope This is Class 11th concept
@@beginner2coder River swimmer problem
But we dont know the direction of river flow. So we cant say which path require less time.
@@beginner2coder we are assuming river to be still
Last question is very famous question mix concept of differential equations and relative motion in different medium . This case is also given in class 12th NCERT example of chapter ray optics to explain the concept of speed of light in different media .. the boy will neither follow complete water route because speed of boy in water will be less than in land nor he will completely follow land because the two routes will form a triangle and the sum of two smaller side of triangle is always greater than third one .. he will partially follow both land and water route which will depend upon there values after doing differentiation minima concept
bro that's exactly same conceptual solution to a famous problem called "river boat problem" for crossing river in least time .
(class 11th cbse physics.. motion in two dimension.)😁
Buddhi bhot tez h🔥 tumhari
@@from_the_elites_- No bro,, there the boat has to travel entirely in water but here,, the lifeguard has to travel in both land and water,,
@@srijall u r right but i said that same concept of achieving minimum time is given more importance than distance is more or less.
Concept: It is not necessary that to achieve least time we should travel a smaller distance.unlike in river boat problem we have to get to other side in least time for we have to travel diagonally instead of straight.WE need to travell diagonally because we dont want to waste our energy in overcoming the velocity of River.
:)
Now in this problem of guard and drowning man . I the coast guard want get minimal time rather than minimum distance(time is given more priority because he is drowning).
For this the coast guard will run along the beach (its obvious that you can run faster on sand than swimming in water)untill he reaches the perpendicular to victim then he will swim towards the victim an save him.
Hopefully you understand this now.
(1 like for my thumb's 👍👍 the did an awesome job...)
wth ... isme differential equations kyou lagana hei differentiation se bhi ho jayega na !!!
isme manalo ki ham x1 distance v1 speed se land pe chale aur x2 distance v2 speed se pani me ... to t1=x1/v1 and t2=x2/v2 ... aur total time T = t1+t2 ... aur fir d(T)/dx1 = 0 karke hame x1 ka value mil jayega ... usse x2 nikaleg ...
2nd approach)
light hamesha short time me jane ka try karta hei ... to ham REFRACTION ka use kar sakate hei ... jeise ki ek light ray life guard ke yahase emit ho rhi hei aur wo kuchh X distance jake pani se refract ho rhi hei ... aur ham uske incident angle ko approximately 90⁰ maan sakate hei .. aur ham snell's law (u1sintheta1=u2sintheta2) se refracted ray ka angle with border nikal sakate hei .. aur ham uss ray ko victim se pass karwa sakate hei ... and we know that u1/u2 = V2/V1 (u is refractive index) ... usse hame X ka value nikal jayega :)
Answer for the question:- swimming through the water will make the lifeguard slower so the lifeguard must take the road to reach the teenager as early as possible and save him .
Very nice ans
ANS. The longer distance from out side of water is faster and efficient because swimming takes more energy and time!!
Imagine you are in that transparent wall toilet and there is a power cut 😂😂
I'm sure gaurav was a commerce student but afterwards he found science interesting or maybe any other reason ,that's why he explain science so well. Keep it up. GURU JII 🥳
He is a curious person who finds science interesting since childhood, he said that in a livestream 🙂
No....he is a science student...in one of his live video, he said that he is a science student ❤❤❤and I'm too
I knew 3rd answer perfectly without nobody's help! Because of watching your channel more and gaining knowledge!💞🥰❤️
Sirfbord se pani me se jana chahi ye
1:13 Fan of Iron man 😎😎😎
5:39 iron maaan😂😂😂😂🤣🤣🤙
He should go through the curved path. Cuz fluid friction in far higher than static friction.
10:08 can we explain that when Fan is running then The molecules of Gas are displaced...their is transfer of momntm also...so, due to speed.. Kinetic energy of Molecules will increase.. then their will obviously be generation of heat due to their collision..hence room 1 will be warmer 🤷🏻
3rd views ❤
""LET'S PRAY FOR THOSE PEOPLE WHO DOESN'T HAVE FOOD TO EAT ON LOCKDOWN AND PRAY FOR COVID PATIENTS"""❤️❤️...
10:11 ac lagana jyada achha hoga 😂😂😂
😄😄😄
Fan 8:45 😀👍
9:28
Or Jisko Yeh Samjh Na Aye Usko Jhand Kehte hain😂😂😂😂
His videos are like unknown islands expedition all fact are unknown for I learned many things from his channel that I came to state level quiz thanks bro😘😘😍😍
agar iss bande se ye sab sikhna padd rha hai to zeher khaa lo, iq level 0 hai tumhaara
@@Manish_254 ye banda bhi kahi se sikhta hi hai
@@daruwaladost-s4u foreign youtubers ki videos ko hindi me masaala. Lagaa ke dikhaa rha hai bakchodi ke saath, issey 2-4 physics ki problem agar puch li to fatt jaayegi iski.
@@Manish_254 kya hua bhai cool down😂 video nhi dekhni mat dekho😂
@@Manish_254 hum bharathiyo ko English wali facts physics science Hindi main pata raha hai toh jo kisko be English nahi atha toh woh Hindi main sekenge.....😉😉🤗🤗😂😗😒
0:55 agar aap Jese teaches ho to sub kuch Aasan ho Sakta hai
The last question's answer- The boy should go through the land area because it would require more energy to him to go through the water than the land and thus consume more time.
If u want to go from D1 to D2 u should use the way by ground(in straight line) if u travel from water, water increase drage so using the way by ground is better and faster way
Water is denser than air
Right, Ground is faster way to travel
I think the same..
Chill bro auto correct is not working
What if way on the land is 3 times longer than the way in water?
In that situation we should prefer to travel through water.
I have got so much knowledge from your both channel bro, love you...
I really respect you man...
Answer: it will choose sand becoz it has rarer medium compare two water which is denser medium
It is part of REFRACTION 😂😂🤣
I was knowing the answer
First know grammar
@@Danish_8876_ mast joke maara re🤣
@@chayadevibs124 hass re halkat hass 😶
mera fan aur candle ka answer sahi tha
Happy birthday gaurav bhai...
Apka jldi se 5 million ho jaay..
I am highly Addictive this channel❤❤❤
Congrats to everyone who found this comment here is your award: 🏆ㅤㅤㅤㅤㅤ
Us heat ko neglect kar sakte hain
Comparatively it's easy to walk on land then swiming in water so it's efficient to run upward then jump in water and save that stupid teenage 😁😂😂😂
🤣🤣🤣 Ousko swim karna nahi aata to panni me kyu gaya vo bhi itna andar 🤣🤣
I am in 12 th standard and l have all the topics that are in your questions but l really get cleared of that concepts .l love your channel brother thanku for having the informative channel for us❤️
I am too in 12th std
If your concept is clear than answer the last question 12:25
@@PranavYadav21 agar life guard pani me se sidhe jayega to pani ka flow use oppose karega to use sidhe n jakar
pani me dusare point se yani tircha janaa chahiye
@@snehasonawane8359 hmm..
Tum 12 class pass kr liye ho ya es year 12 me ho
Gaurav bhai ap Physics-Chemistry padana chalu karoge to sare students top karne lag jayage
😜
Plz Answer me,Kya aap nhi jante h ki space me Gravity ki trah hee Oxygen bhi nhi hota h?Aur jis jagah oxygen hee na ho waha PR aag kaise jal skti h?
Ocean me sidhi lakir par pani se travel karne par ocean ki lahare use desturb karegi isliye raste jana better hoga
13:02 he should go from d2 on land because we need more force to go through water then to run on a land
4:03 Iron Maaan 😂😂
I noticed 😂
Seedhe Jane me usey swimming karni paregi.Aur bhag ke Jane se wo jitni jaldi pahunch jaega.Swim se utna jaldi nhi ja skta h.
One day ,Gaurav will become the Elon Musk of India ..❤️😘😍👍
Gaurav Is Just Like Jitu Bhaiya Form Kota Factory 😂
Bhai u just spoke out the facts! We've got our Jeetu Bhaiya😅
Aaj Gaurav bilkul gunda lag raha hai 😂
Iss tarah tu handsome lagta h 😁
Always use concepts in mind
Always use concepts in mind
Always use concepts in mind
It's much interesting to see all the question and woo! Mine all concepts and answers were correct
Thank you Gaurav Sir.
No as compared to land water would be easier to get through as In swimming, the force produced by the swimmer is equal to the mass of the swimmer multiplied by the acceleration of the swimmer in the water. Do it's better and easier & uses lesser time to save the person in the point D2
When the wave hits the boy either it will throw him in the sand or it may take him more away from the land. In my opinion the coast guard might try to run through land, but factors like friction will work accordingly as walking in sand is very difficult. But a coast guard must be well trained to cope up with the situation.
bro that's exactly same conceptual solution to a famous problem called "river boat problem" for crossing river in least time .
(class 11th cbse physics.. motion in two dimension.)😁
😂😂😂
😂😂😂😂😂😂😂😂😂 simple tha
You are making a huge impact ☺. Best explanation 👌. I'm very addictive to your videos. Want more videos like this..❤
The 1st room will be also more hot because of the fraction of air molecules
Bhai use 2nd wale path chunna chayie kyuki paani me hamara speed kam hoga viscous force ki wajah se isliye 2nd😘👍🙏
Very interesting and informative questions and very nice way of explaining it . Really gourav sir you are vey hardworking
Finally Come back Legend ❤️