Sir and their team should be appreciated as they are providing free and simple knowledge to everyone. I had applied for [NSO] and these videos are helping me a lot two clearing my concepts.
Our teacher gave us an example of noise : (Students understood 😅) Sir she said the class the students perfect example of N-O-I-S-E . Then I understood okkk that's why whe always remember the name of all the naughty students first 🥇 She says (❤when you all will go to ninth you will forget us but I've seen whenever old students come to meet there teachers very old teachers mostly remember naughty students 😊❤) but teacher even sir they all love us equally 🤩 SIR I HAVE EXAM ON MONDAY AND WHEN MY RESULTS WILL COME SURELY I WILL TELL SIR 😊 thank you
Lightning is the spark that can be seen in the sky during rains and thunder is the loud sound heard just after lightning.though they occur at the same time lightning is seen before thunder is heard ,this is because the speed of light is much more than the speed of sound.The speed of light in air or vaccum is approximately 3*10⁸m/s and the speed of sound in air is 343m/s.Thus,the light from lightning travels to us much faster than the sound produced by it.
The speed of light is more than sound due to more speed of light it reaches us before sound therefore lightning is seen earlier and sound is heard later
Ans - the light trevels at the speed of 300000km/sec. Which is very large in comparison to the speed of sound which trevels all then 3.30 m/sec. In air :that is why lightning is soon at the rate earlier and thunder is heard later 😊😊
😊because light travels faster than the sound travels that is why we first see lightening and then after some second we hear thunder in the sky during rain .❤❤
Lightning is seen earlier because light travels faster than sound. The speed of the light is appox. 3x10 whole to the power 8 m/sec whereas speed of sound is 340m/s. As a result the sound of thunder takes more time to reach our ears and lightning could be seen earlier.
H.w questions This is because the speed of sound is lesser than than the speed of light so as the speed of light is more it travels faster then the sound is light is seen earlier and sound of thunder is heard later Thankyou for such a wonderful class and for your precious time where you shared us some knowledge ❤❤❤
Lightning and thunder occur at the same time and distance from us. However, lightning is seen before thunder is heard because light travels faster than sound. Light travels at a speed of about 300,000,000 meters per second, while sound travels at 340 meters per second.
bcoz lighting has light energy, and thundering has sound energy, and as we all know light travels faster than sound....this is why lighting is seen earlier and thundering is heard later...
lighting is seen earlier because speed of light is 3*10^8 m/s whereas the speed of sound is 340 m/s .Therefore we see thunder initially and hear sound later
The lightning and thunder are seen when there is a heavy rain and lightning is seen before than thunder because you generally seen that if lightning 🌩️⚡ falls on somebody or something it will burn it and it is because of the high speed of lightning so lightning is seen earlier because speed of lightning is very much higher than the speed of thunder, thunder speed is 330m/s and which is very less because speed of lightning is seen and calculated as 3 × 10 to the power 8 hence, lightning is seen earlier than thunder
During a thunderstorm, lightning is seen first and thunder is heard later on because light travels faster than sound. Lightning always comes with thunder. If you see a lightning flash but cannot hear anythunder, the thunderstorm is most likely be quite far away from you.
The speed of light is 300000km/s and the speed of sound is 330m/s . Light travels faster than sound.....Hence lighting is seen earlier and sound that's the thunder is heard later
Homework answer sa we see to the lightning first and thunder after because the speed of light is more than the speed of sound in air sahi speed of sound =3×100000000 metre per second and speed of sound = 150 metre per second hence prooved😁
The speed of sound (344 ms) is far less than the speed of light 3×108 ms in air. Thus sound of thunder will take more time to reach the observer compared to light. Hence, a flash of light is seen before we hear thunder. Therefore, lightning is seen earlier and thunder is heard later. Answer of home work question
Lighting and thunder take place in the sky at the same time and at same distance from us. Lighting is seen earlier and thunder is herad later as speed of light is more than sound.
The reason for the delay in hearing the thunder, is due to the difference in the speed of light and sound. Light propagates millions times faster than sound.
Lightning and thunder take place in the sky at the same time and at the same distance from us but Light travels faster than sound. thank you, sir, now I understand this chapter better than before. :)
Homework:- The speed of light is fast....so lightning comes way before the thunder. The sound propagating through medium air is much slower ...so it will come way after the lightning
Sir iam cbse our exams are coming on April 1 can you conduct any tests, quiz , or mind maps? Because I saw your video in light and also in many lessons too but that light lesson had good mind maps.
18:44 the speed of light is more than the speed of sound thus, lightning is seen first, which is accompanied by thunder later
Legends come before exam 😂
Ha bhai 😅
Toh kya exam ke baad aoge
Yes bro
Mera aaj hi exam h mai ye subah subah dekh ke ja rhi exam Dene.. 😢😅
Got an Exam tomorrow 😅
All the best for your tomorrow exam
Mine is today
Thanku
Same 😭🫵🏻
Thanks but I am the topper of class so I have no risk
Tq
1:33 sir started teaching
😅😅😅😂😂😂right😅
Fr💀
Thank God bro fr I ain't wasting 1 minute 33 seconds 💀
😂😂@@saraswatasadhu5611
People with UA-cam premium can directly skip that without these types of comments.
Sir and their team should be appreciated as they are providing free and simple knowledge to everyone. I had applied for [NSO] and these videos are helping me a lot two clearing my concepts.
Same bro😅 Byju's videos help a lot🫶🏻
Our teacher gave us an example of noise :
(Students understood 😅)
Sir she said the class the students perfect example of N-O-I-S-E .
Then I understood okkk that's why whe always remember the name of all the naughty students first 🥇
She says (❤when you all will go to ninth you will forget us but I've seen whenever old students come to meet there teachers very old teachers mostly remember naughty students 😊❤) but teacher even sir they all love us equally 🤩
SIR I HAVE EXAM ON MONDAY AND WHEN MY RESULTS WILL COME SURELY I WILL TELL SIR 😊 thank you
Bro r u a human?
Or created this for an AI?
Lightning is the spark that can be seen in the sky during rains and thunder is the loud sound heard just after lightning.though they occur at the same time lightning is seen before thunder is heard ,this is because the speed of light is much more than the speed of sound.The speed of light in air or vaccum is approximately 3*10⁸m/s and the speed of sound in air is 343m/s.Thus,the light from lightning travels to us much faster than the sound produced by it.
actually sound cannot travel in vacuum so you can correct you comment
Google 😊 19:39
Seedha answer
Light travels faster than sound
she said that "the speed of sound in air is 343m\s....."@@fusiongaming132
You are wrong the answer is right
Homework Answer:- The Speed of the sound is much smaller than the speed of the light.
Thus we see thunder first and then listen to the voice of it.
14:51 That was unexpected!!🤣
13:58-Threshold of pain=130db
5:15 because air is available in solid liquid and gas
light travels faster than sound 18:44
The speed of light is more than sound due to more speed of light it reaches us before sound therefore lightning is seen earlier and sound is heard later
Tysm I have exam tomorrow 😂😂
Thanks sir for understanding this chapter you are the teacher 🎉
14: 44 your voice is like mic mouse 🐭
😅😅😅😂😂😂right😅
FR
Can I get ur socials ?
Ans - the light trevels at the speed of 300000km/sec. Which is very large in comparison to the speed of sound which trevels all then 3.30 m/sec. In air
:that is why lightning is soon at the rate earlier and thunder is heard later 😊😊
Sound travels at 330 m/s not 3.30 m/s
19:05 because speed of light is faster than sound
well explained sir please upload a rapid rivision of crop production and manegment class 8 .....
😢😢😢😢😮😮😮😅😅😅😅😅😅😂😂😂😂😂😂😊
😊because light travels faster than the sound travels that is why we first see lightening and then after some second we hear thunder in the sky during rain .❤❤
Lightning is seen earlier because light travels faster than sound. The speed of the light is appox. 3x10 whole to the power 8 m/sec whereas speed of sound is 340m/s. As a result the sound of thunder takes more time to reach our ears and lightning could be seen earlier.
18:56 It is because the speed of light is faster than that of sound 😊
19:01 It's simple
The speed of light is fast as the speed of sound
Homework question ❓
Cause light travels Faster than sound
HW question:- bcz speed of light is faster than Speed of sounds 👍🏻😊
Legends watching few hours before exam ☠️💀💀
H.w questions
This is because the speed of sound is lesser than than the speed of light so as the speed of light is more it travels faster then the sound is light is seen earlier and sound of thunder is heard later
Thankyou for such a wonderful class and for your precious time where you shared us some knowledge ❤❤❤
18:41 Because speed of light is faster than speed of sound 👍
Like karo agar tum exam se pehle aaye ho
Thank u sir for this wonderful session .
Thanks sir
Tomorrow is my exam 😝😝
This video helped me to quickly revise
sir mejhe app ki wajha se paad aa gaya
bichara mai
Wtf? 😂😂
19:04 light travels fast than sound
Because lightning have frequency than thunder strom etc
False
Homework question: The speed of light is more than the speed of sound that is why we were able to here the lighting first and the thunder later.
3:00 best timing
It's because of time traveling of sound wave😊
Lightning and thunder occur at the same time and distance from us. However, lightning is seen before thunder is heard because light travels faster than sound. Light travels at a speed of about 300,000,000 meters per second, while sound travels at 340 meters per second.
bcoz lighting has light energy, and thundering has sound energy, and as we all know light travels faster than sound....this is why lighting is seen earlier and thundering is heard later...
lighting is seen earlier because speed of light is 3*10^8 m/s whereas the speed of sound is 340 m/s .Therefore we see thunder initially and hear sound later
Thank you sir
There was little confusion occuring in mind but noew it is clear....very thanks
The lightning and thunder are seen when there is a heavy rain and lightning is seen before than thunder because you generally seen that if lightning 🌩️⚡ falls on somebody or something it will burn it and it is because of the high speed of lightning so lightning is seen earlier because speed of lightning is very much higher than the speed of thunder, thunder speed is 330m/s and which is very less because speed of lightning is seen and calculated as 3 × 10 to the power 8 hence, lightning is seen earlier than thunder
Thank you sir.... in class I didn't understand this chapter that's why I'm seeing this video Thanku so much sir❤😊sirr aap live lelloo
Lightning is see to be earlier during the thunderstroms this is because the lightning travels with more speed than sound produced in a thunderstorm
Speed of light (3*10^8 m/s) is much faster than the speed of sound (343m/s) is why we see the lightning before the thunder
During a thunderstorm, lightning is seen first and thunder is heard later on because light travels faster than sound. Lightning always comes with thunder. If you see a lightning flash but cannot hear anythunder, the thunderstorm is most likely be quite far away from you.
Lightning and thunder takes place in the sky at the same time and at the same distance from us but light travels faster than sound.
Will we having these kind of videos for ch 11 , 12 and 13 class 8?
Because the speed of light is faster than the speed of sound...
Speed of light -3 lakh km/sec
Speed of sound -340 m/sec
Because speed of light is more than speed of sound and lightning ⚡ occur in air and sound is lesser in air and more in solids
Homework question answer:
Bcz our eyes are infront and our ears are a little back r😅😂
Just kidding real answer is light travels faster than sound..
Speed of light which is 3×10⁸ m/s, is more than speed of sound which is (nearly) 340 m/s. That's why lightning is seen first.
The speed of light is 300000km/s and the speed of sound is 330m/s . Light travels faster than sound.....Hence lighting is seen earlier and sound that's the thunder is heard later
Homework answer sa we see to the lightning first and thunder after because the speed of light is more than the speed of sound in air sahi speed of sound =3×100000000 metre per second and speed of sound = 150 metre per second hence prooved😁
14:44 🤣🤣😂
Funny line 5:10😂😂😂
The speed of sound (344 ms) is far less than the speed of light 3×108 ms in air.
Thus sound of thunder will take more time to reach the observer compared to light.
Hence, a flash of light is seen before we hear thunder.
Therefore, lightning is seen earlier and thunder is heard later.
Answer of home work question
Like like karo Agar answer helpful ho to
Legend are watching 1 day before exam and in 2x speed 💀
Us bro us ❤❤
Lighting and thunder take place in the sky at the same time and at same distance from us. Lighting is seen earlier and thunder is herad later as speed of light is more than sound.
5:10 sar uspe ya kispe hu hu bio wali mam ke saath experience
The reason for the delay in hearing the thunder, is due to the difference in the speed of light and sound. Light propagates millions times faster than sound.
Because speed of light is more than the speed of sounds that's why the lightning is shown before the thunder takes place
Bro said under 30 min but finished under 20 min
Lightning and thunder take place in the sky at the same time and at the same distance from us but Light travels faster than sound.
thank you, sir, now I understand this chapter better than before. :)
Because the speed of light is more than sound. Therefore, we see the lighting earlier and hear the sound later on 🤔
Like please 😅 if you don't like then anty ka beta bunty
19:56
Because light is fastest in whole universe and that why we see lighting earlier then thunder ⛈️
Thankyou sir for a bringing such a great, amazing and useful session for us.......❤❤💛💛💖💖
Because speed of light is greater than speed of sound
Hw
Question
Lightning is heard before the thunder. As light travels faster than sound.
Mera exam hai kal or mene abhi Tak kuch nahi pada hai or vo bhi Animal dack ne ke baad 😂😂 rat ke 12:00 beje 😂😂😂
05:11 😂
You Were BY RIP INDRA
Yooooooo❤
It is important to watch this UA-cam video for animals one night before the exam. As if tomorrow is my exam, I am watching today...
Sound effects were wonderful sir.
1:12
We hear lightning first because the speed of light is more than the speed of sound hence, thunder is heard later.
Light speed is faster than speed of sound, thus we see lighting first and hear sound later
Speed of light is more than sound and light passes through the cloud easily compared to sound
speed of light is greater than the speed of sound that is why during thunderstorm lighting is seen earlier and thunder is heard later
the 3 set of bones are hammer,anvil and stirrup
all the best for your exam tmrw
14:45 bro be came mario😅
Homework:-
The speed of light is fast....so lightning comes way before the thunder.
The sound propagating through medium air is much slower ...so it will come way after the lightning
Lightning is seen eariler than we hear the sound of thunder because speed of light (300,000,000 m/s) is more than the speed of sound (330 m/s)
The seed of light is faster than the speed of sound hence we see lighting first .
Sorry speed not seed
Very nice explanation
Sir book 📚mat dekho😊😊
😂
Thankyou sirrr😊❤
Ans :- 1 upon F so, frequency is 100 therefore 1 upon 100 equal to 0.1s
tak tak tak aha 5:10
the speed of lightning is faster than that of thunder as light travels faster than sound.
answer= We har sound after the thunder bcoz light travels faster than sound
Sir iam cbse our exams are coming on April 1 can you conduct any tests, quiz , or mind maps? Because I saw your video in light and also in many lessons too but that light lesson had good mind maps.
Sir we have that sound travel fast in soild
Lightning is seen earlier than thunder as the speed of light is more or faster than sound thus lightning is seen earlier than thunder
Light travels faster than sound 😊
Hi sir ❤❤❤❤❤❤
Hi sir❤❤❤❤❤❤
Hi sir ❤❤❤❤❤❤
Hiii sir ❤❤❤❤❤❤
Legend watch this video 15 hrs before exam .
14:44 HALLOOOWW 😂