Light Chapter Class 8 Science (Chapter 16) in One Shot | BYJU'S - Class 8
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- Опубликовано: 4 окт 2024
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Welcome, Achievers! In today’s episode of BYJU'S Champions, our BYJU’S expert explains CBSE Class 8 chapter "Light" in one shot.
This is a very informative session, as Saurabh Sir teaches in depth about the laws of reflection, types of reflection, multiple reflection, kaleidoscopes, dispersion of light, and the human eye in one shot.
Saurabh Sir leads you through the concepts in a very interesting way. So make sure to watch the video till the end and use the live chat box to clear your doubts.
Don’t forget to like, share, and comment.
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00:16 Preparing for Class 8th light chapter
04:04 Light enables us to see and understand the world around us.
09:01 Reflection, angle of incidence, and normal in light.
12:14 First law: Angle of incidence is equal to angle of reflection
19:06 Mirror reflection explained: regular vs. diffuse.
21:50 Understanding irregular reflection and its impact on the surface
27:39 Symmetrical letters are reflected the same in a mirror
30:32 Properties of Image Formation by Plane Mirror
36:02 Creating beautiful patterns using multiple reflections
38:06 Take help now for small information, as you won't get another chance later
43:05 White light splits into its constituent colors
45:17 Pupil size changes with light intensity
49:24 Optic nerve and blind spots explained
52:46 Transition from bright light to darkness activates cells inside our eyes
57:10 Taking a break for 2-3 minutes is important for children's learning
Thank you for this
Wy are you so jobless???
@Danish_Kumar_The_Rockstar Its his wish, he is trying to help us, unlike u
Thankk youu sooo muchh💗💯✨
R u sooo jobless?
Important Topics covered:
00:16 Preparing for Class 8th light chapter
04:04 Light enables us to see and understand the world around us.
09:01 Reflection, angle of incidence, and normal in light.
12:14 First law: Angle of incidence is equal to angle of reflection
19:06 Mirror reflection explained: regular vs. diffuse.
21:50 Understanding irregular reflection and its impact on the surface
27:39 Symmetrical letters are reflected the same in a mirror
30:32 Properties of Image Formation by Plane Mirror
36:02 Creating beautiful patterns using multiple reflections
38:06 Take help now for small information, as you won't get another chance later
43:05 White light splits into its constituent colors
45:17 Pupil size changes with light intensity
49:24 Optic nerve and blind spots explained
52:46 Transition from bright light to darkness activates cells inside our eyes
My science exam is tomorrow
Pray for me
How did it go
Kon kon Ek din Phele video dhek raha hai 😂😂😂
Me
Me not 🚫
Me
Backbenchers anyone here with me?
Sir I am from Australia.But sir I can understand everything that you teach.
Sir I have a doubt in laws of reflection
*If angle of incident is 30 the how is angle of reflection is 60
As the 30 angle was between incident ray and surface and not between the normal and incident ray.. and if the angle between the the surface and incident ray is 30 then, the angle of incident will be = 90-30 which is 60 so.. the angle of reflection = angle of incidence.. that is 60.
Hope it helped you..!!
last mein toh book se hi padna padta hain sari definition😢😢😢...
After 2 days my science exam is there please hope for me 😥
I hope you you will get good marks
Kitne marks mil gye bhai
Abhi padrahe ho?
Best of luck bro
@@vibhukumarshukla6751 you are 28 day late bro 😂😅
15:40
Tomorrow is my final exam😅
Mine also 😂😂
Same here broo 😂
Sir if our eyes is sensitive so why astronaut can see sun rays clearly?
🤨🤨
9
They see through sunglasses 😎
Vote for surabh sir
SURABH SIR 👍. 👇
My exam is in like a week this helped a lot thank u so much ❤😊😊
All the best
Today is my science paper 😢😢
For you all the best
Sir my science all capters are cler becoz of your teaching sir and doubts are all clear sir😃
Best of luck for your tomorrow exam 😂😂😂😂😂
😅
I have exam tommorow and Instead of continuing the video I am looking at the circle and square lol
hahahahahahahahah sooo funny
46:48
Sir which part of eye give it it's colour and how? There is a white portion of eye for which reason it is?
Iris gives distinctive colours in our like like brown , black , and blue. We shall read that how it gives in 9 or 10 class so have patience.
@@seemaverma7933 Thankyou
rods and cones
video starts from 4:28, thank me later...
sir I have a doubt, when we use a light or a ray we cant see in the air. Why?
Because it does not reflect
@@neetusharmasharma9284 tq bro
@@lingeshachs4672 it's ok bro
Thankyou sir for this session 😃😃 you made all concepts easy
Most welcome 😊
thankyou sir
@@byjus-class-678
2:52 2:54 2:55
Refraction of light?
27:08 A, H, I, M, O, T, U, V, W, X and Y.
motu🤣🤣
Ya❤🎉😂
Nice session sir I am bsc student student but now I did realize something wrong after watching 👀
20:02 yes sir it's parallel
Sir speak in Hindi please
Sir.,please give me definition of "how can a mirror produced exact reflection..?
51:00 Yes
Thanyou sir sir aap ne bhot aacha padhaya
What is normal????
18:44
Sir can you please do a session on light's chapter ncert solutions
how does images appear 3d in mirror if the mirror is 2d l x b
The image in a mirror isn't truly 3D, but our brains perceive it as 3D due to a combination of factors:
Monocular cues: Even with just one eye, our brains use information like size, perspective, and shading to infer depth. These cues are present in the reflected image.
Binocular vision: When we use both eyes, we receive slightly different viewpoints, which further strengthens the perception of depth.
Movement: As we move our heads or the objects in front of the mirror, the image shifts slightly, mimicking how our brains expect to see 3D objects move in the real world.
The physical properties of the mirror itself (its dimensions and flatness) don't create the 3D perception. Instead, the mirror reflects light and preserves the spatial relationships between objects in the scene, allowing our brains to interpret them as 3D..
32:37 infinite hair tunnel of doom
Such a amazing session.. adorable....it made my all concepts clear..
1 like= 99.9+ (don't take risk)
how is glass on our window transparent
Reflected light can BL reflection again
Sir I don’t understand periscope
Same
Sir the way you explain is sooo nice . But I am from Kerala and I don't understand Hindi . At times when you speak Hindi I don't understand . So sir it my humble request that please take clases completely in English so that I and other students who doesn't know English will understand better
go and study on another channel
Yes go away
Actually telling you in a polite way "you can't change the world, you can chang your self "😊❤
Sir please explain again how mutiple umage is formed in kaliesioscope and waht is kalideoscope
Sir apke head par se Bhot zyada reflection hota hai
sir kaunsa chapter hai?????
sir page no.?????
back bencher be like this..
PLZ START NOW SIR
Light is source of energy which helps us to objeat
Yes
21:17 False.
Sir thoda hindi bolliya karo
16:02
Is dangerous lazour can be reflected
Yes because its also a type of light
But with high intensity
I want to join but i don't know how to join
Mat join kar bekar hai
Sir if we point a laser in still water what happens
Sir you teach very good and entertaining
57:48 minutes mein sew 30 minute mehra liye 25 minutes padhaye 2:48 minutes apni tareef kiye.... bohot sahi 😊
Thnk you sir it helped me alot
Sir it's my request pls don't speak in Hindi because I can't get that I m tamil
I have a doubt
Sir what is kaleidoscope
It’s a device used for fashion designing and is based on principle of multiple images
21:26 False
Thank you sir and byju's
Sir What Will Be The Lateral Inversion Of The Word Ambulance
12:31
Sir it says that all rays go in se direction not in opposite direction
4:32 video starts
What is surface
Litterlly he wasted more than 5 minutes😅😅
The image formed is virtual
Pehle baat kar lo aap padhana baadme
guys one tip, watch in 1.5x it saves your time...
Sir how to make pericope 42:09
Sir is table a polished surface
yes
Sir I am from Australia.But sir I can understand everything that you teach. I
Love from india
35:03 KALEIDOSCOPE
Hi sir my name is Vivek
Sir I have an quari
What any incedent ray reflect in water so make two normal what I am write
Ni hota esa
Im from class 6 can you tell what is a mindmap im seeing it in almost every comments in live chat box 🖤🖤
There are 2 laws of reflection
15 degree in 10 :43
Kaleidoscope can be also made up of a goldex pen😅
Sir please make kaleidoscope and periscope ..
why do we blink our eyes ?
Nice question bro 😉
PLZ DO ONE VEDIO ON MICROORGANISM
Sir how to make Periscope
😂😂😂what a question 😂 why you want to make it
😍😍😍 sir thank what are you doing
Sir I'm in 9 class but I'm watch the video because I'm participate in the talnetex exam by allen 😅you are the great
Same to you...Even I m also from class 9 and I m also participating in TÀLLÈÑTEX exam in 5th November that's why I m here ....
What is tallentex exam?
@@malothshruthi_17 it is a scholarship exam conducted by Allen institute
U M O A W X V T 27:11
Sir I had a doubt that, how will we prove that the mirrors are 45 degrees? How?
Thankyou sir for this session you made all the concepts easy
sir i am 5'9
Thank you so much
Hi sir my exam is after 2 days
sir I am making best marks
In paper help you.❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤🎉❤🎉🎉❤🎉❤🎉❤🎉❤🎉❤🎉❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
13:56 thik ja bhai
sir what is snell`s law
Topper students be like
Sir I got 21/20 after seeing this video 😂😅
sir your short is very easy
Day after tomorrow is my science paper please pray for me