Light - Complete Chapter | Mindmap with Explanation | Class 8 | BYJU'S
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- Опубліковано 10 лют 2025
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"Welcome to this episode of our new series "Crash Course".
In this session Saurabh Sir will be taking a session on complete chapter 16 “Light” of class 8 in 20 minutes. Not only this, at the end of the session, he will give you 10 Most Important objective questions as homework.
So, what are you waiting for? Come join the session.
We at BYJU'S always strive to give you the best. Add this video to your study plans to score more in Exam!"
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5:59 Sir your head is polished
😂😂
Same thought!🤣🤣
😂😂🤣
Yes I also thought same😊😊😊
Don't you have manners
Legand can watch before 😂one day exam
Shut up would you
Yes me
Me too😂😂
Ikr 😂
Me too
I am watching tis video at 5 am 😂 and my exam on 8.30 today😂😂😂😅
Same with me 😂
Sameee bro😂
i feel that you are a backbencher
Fact your wasting your time by typeing the message and you probably failed the exam failure
Loll atb bro
No words to say❤ Amazing class😊
3:24 class starts... thx me later ✌️
amazing and very interesting class thanks byju's😍
3:25 isnt that the room from fnaf4? anyways, excellent session as always!
yes
Yeah true
That is from fnaf 4. I kind of half expected a jump scare to be there but luckily it wasn't there
Ive been waiting to find fnaf in the wild since I was five lmao
Sir is very casual with us which is his very good habit 😊 ......
Thank you so much sir for this amazing session ✌😇
10:24 we have this in our syllabus , good session😀
At 1 st test when I had this chapter I did abbi dabbi 😅but after watching this video got full marks 😊 thank you so much sir ❤
5:54 but sir ka head can
10:30 then he say this just😂
14:36 check it out. Light enters our eyes through the cornea not through the pupil
No, you are wrong..
Light enters through the Pupil only...
3:22 The class starts
Please come with some natural phenomenon lesson
your head is polished
Ahha😂😂😂
You want you can don't judge anyone because after some years you can also be like that
@first learn how to speak english
Apka sar 5:19
Thank you sir for your support other students 🎉
7:08 most replayed
4:30 polished
3:49 Sir light do not travel in a straight line it travels as a wave but it is so short that we think it is a straight line. 4:33 .
Ooh, really 😮
Right I was about to type this .
correct
rh, but if u write that in exam ur done for
We had done an activity showing the light travels in straight line in class 7
9/10
Sir I have doubt in this question:-
An incident ray makes an angle of 65 degree with the surface of a plane mirror. The angle of reflection in this case will be:
15°
25°
45°
90°
25degree answer
May be 25°
Answer is 25° because till the incident ray the distence was 65 degrees that means we want 25° more to reach the normal and then if you see the the angle of incidence is 25° then the Law of Reflection (angle i= angle ii) angle of reflection will be 25°.
@@soul_slayer0hi , I am a 7th grader but can help youOut
The 65 one is called the glancing angle which is angle of incident ray with miror but angle i is incident ray with normal
Also normal makes 90deg with the mirror so the equation will be
Glancing angle plus angle i =90degree
65+x=90
X=25 z
Hope this helps 🎉
Power 🔋 🏴 of allenite 😊😊😊😊😊❤❤❤❤
Pura chapter ka video dekh liya aur ye esa phaltu question kyu puch rahe ho ?!? Mirror plane to incident ray is 65 degree so, incident angle = 90-65. So, Incident angle = 25 degree. As we know that incident angle = reflected angle. Then reflected angle = 25 degree
Tysmm it was so helpful for last min prep
(the fnaf 4 gameply at the start tho)
I WAS LOOKING FOR THIS!!! I finally found a FNaF fan in the wild broo
@@CabbyiiiSame!
Sir your head is polished and smooth 😂
But sir your head is polished
15:15 sir our iris colour can't be black, it can only be deep or dark brown which is caused by an abundance of melanin
Ur teaching is understandable sirrrrr💯💯💯💯
It was a nice session
Sir I can see my reflection on your head 😇
yeah
I think you can just command irrespectively like this. You didn't even know how to respect others
😂😂😂😂😂 bhai thodi sharam karle yaar
Ikr loll 😂
just for fun only right?
Grantee, jod are watching this video, day before Exam 🤞🏻👀
Bro our names are same and my sensai name is jiraya and ur😊😮😮😮
Yaaa
Sir i see reflection 🪞
Of light 🕯️🕯️🕯️
On your head 😨😨
amazing and understanding class😃😎😎
Nice session sir
Thankyou sir. It's very useful for me.❤️
Watching One Day Before Exam 😂😅
Thank you sir
welcome
3:57
Sir incident ray, reflected ray and normal all lie in the same plane *at the point of incidence* . Is it correct sir??
Yes beta
I am in 13 class
😅😂
same
you are a wonderful teacher sir
14:44 check it out
i got 10/10 and did it in 3 mintutess!
Bro I completed final in just 30 minutes
6 : 00
but your head is polished
Hello sir. Sir this question was easy but I am not able to understand what it means. Some standing in front of a plane mirror. The distance between Sam and his image is 10 m. How far is he standing from the mirror
The distance between Sam and his image is 10 m.
So distance between Sam and mirror is 5 m.
And the distance between mirror and Sam image is 5 m.
So 5m + 5m =10m....
🙂🙂
@@Piyush_singh99 Thanks for the explanation ☺
The distence between Sam and his image is 10 m then what you just have to do is do the half of 10 that is 10/2=5m Because they have asked us the distence between the Sam and the Plane Mirror not between the Sam and his image.
@@amitsangwan2219 Thanks
bro this is one of the most bakwas question i have ever seen in my life. Please study properly so that you don't get doubts in the one of the most silliest questions
10 of 10😊
vvvv good session
3:25 starting
Thanks byju's I have test on Monday haven't studied anything thanks byju's
Your test is there
Bro tomorrow is my exam 😂😂
The eye disease which you have tell was myopia but in your paper it was cataract
Tq sir
The first scene in the lecture is from fnaf 😅😅😮😮😮
Fnaf 4
7:12
Sir this class is amazing. This is very useful to me.
3:26 starts the class
Sir , you are repeating one shot, one shot , again an again but let me be honest this is dismotivating us. Our brain starts like leave it this video is not goona be too much good for revise
No actually it is for u . U feel like it is demotivating
Very Helpful Session sir ☺️
Nice sir 🎉🎉
Sir your head is a polished and smooth surface😂
Legand can watch before one day annul EXAM 😅😅
Very good sir
Tq sir for this session live kab loge
Best revision for before one day of exam
Yuman eye❎ Human eye✅
Refraction Of Light is also in syllabus for us 😭
This is a very excellent explanation of light chapter sir. Very useful for quick revision. (Died when i saw fnaf 4 opening)
But god will see after the exam😂😂😂😅
Sir stop saying watch one shoot it makes disturb me and also confused about which video is better
You are right but Actually he is trying to do his best for his student that's why he is saying watch inshort
3:26 starts!
17:08 most replayed
@5:14
Sir kindly do stars and solar system quickly
It's deleted
9:00 exam i am watching 7:00
After 20 days my exam is there😅
My tomorrow
Same
woww
Sir but your forehead is so shinny😂
Padna ka tareeka abhi casual ha
3:47 Ye Freedy devs ka ek game se liya
best science teacher
I can top my class after see the video you are best
Ultra legends watch this before 2hrs before exam...😅...like me
7:48
I got 20/20 on my pt3 exam i just saw this 10 hour before the exam it is too good
Thts great
Tysm sir ❤️
I'm the legend who
Watching video before 😅one exam day
It was the best and I came 2sd rank in physics
I have liked and subscribed the videos 📹 ❤❤❤धन्यवाद
Hey sir nice explanation
Me watching 1 hour before exam
10:04
Legend watching before the Olympiad
My exam is today 11:30 😌
tysm sir u saved my life
Me💀 Watching 1hour before exam💀
Exam day 5:22
Amazing session ❤️❤️
I'm watcing this video before 1month of exam ❤
Im watching one day before 😎
The room in start of the chapter is related to five nights at freddy's franchise
Sir uesd fnaf 4 at 3:50
Thanks sir
Sir app ko kaise pata app to kabhi gaye hi nhi hoge 9:48