Light Chapter Class 8 Science (Chapter 16) in One Shot | BYJU'S - Class 8

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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

[@pastRECAPED]

Thank you for this

[@Danish_Kumar_The_Rockstar]

Wy are you so jobless???

[@Sriramsaranga]

@Danish_Kumar_The_Rockstar Its his wish, he is trying to help us, unlike u

[@SimpleArtwith_Sam]

Thankk youu sooo muchh💗💯✨

[@arnavraokhande1215]

R u sooo jobless?

[@neerajthakran2520]

Kon kon comments padhna aya hai 😂😂 you are legend
Atendence lag va lo👍

[@thestudyhiveofficial]

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

[@yashitha5767]

Sir I have a doubt in laws of reflection
*If angle of incident is 30 the how is angle of reflection is 60

[@tanishka_21]

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..!!

[@siddharthallgamingsg1566]

Ek kaam Karo pahle bacchon se hi baat kar lo baad main padhana 😂😅

[@SurajSingh-lf4nr]

Sidd name Wale sab aise hi hote hai kya matlab savage

[@SurajSingh-lf4nr]

Mera bhai bhi same hai

[@UxmaXehra-r5s]

Correct

[@challengexyz5409]

Yes very right

[@ayushraj_gupta555]

❤❤

[@anjuanju9607]

Kon kon Ek din Phele video dhek raha hai 😂😂😂

[@VinayaksinghChawda-wp1bu]

Me

[@ManishKumar-wu7jk]

Me not 🚫

[@mdislam6693]

Me

[@harshadgoswami7836]

My science exam is tomorrow
Pray for me

[@anshhh950]

How did it go

[@Hemanthkumar-it5ev]

Sir my science all capters are cler becoz of your teaching sir and doubts are all clear sir😃

[@dikshasen7116]

Thanyou sir sir aap ne bhot aacha padhaya

[@quazizeeshanahnad787]

Sir I am from Australia.But sir I can understand everything that you teach.

[@vikaschaudhary7252]

Sir can you please do a session on light's chapter ncert solutions

[@dnspranav]

32:37 infinite hair tunnel of doom

[@gunguntagore8912]

Thankyou sir for this session 😃😃 you made all concepts easy

[@byjus-class-678]

Most welcome 😊

[@muthuvel9407]

thankyou sir
@@byjus-class-678

[@sunilkumarkularia4913]

15:40

[@manujoji2524]

Vote for surabh sir
SURABH SIR 👍. 👇

[@TanjikoGaming]

Refraction of light?

[@manhaasharaf]

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

[@SwatiPatil-d9r]

go and study on another channel

[@nabarun98]

Yes go away

[@Devilgirl...893]

Actually telling you in a polite way "you can't change the world, you can chang your self "😊❤

[@NarendraSahu-nm9jk]

51:00 Yes

[@snowflake7624]

Sir which part of eye give it it's colour and how? There is a white portion of eye for which reason it is?

[@seemaverma7933]

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.

[@snowflake7624]

@@seemaverma7933 Thankyou

[@Wewewe754]

rods and cones

[@lingeshachs4672]

sir I have a doubt, when we use a light or a ray we cant see in the air. Why?

[@neetusharmasharma9284]

Because it does not reflect

[@lingeshachs4672]

@@neetusharmasharma9284 tq bro

[@neetusharmasharma9284]

@@lingeshachs4672 it's ok bro

[@BajiKaisuke-tc1pq]

Reflected light can BL reflection again

[@ashkhan8032]

Any toppers

[@mandeepkaur7626]

me

[@Dark_Animations293]

Me bro❤❤

[@gopikota1346]

Let's dominate

[@ArchanaMishra-k6e]

💪😁

[@harishbehera008]

meeeeeeeeeeeeeeeeeeeeeeeeeeeee........

[@chetnasingh114]

57:48 minutes mein sew 30 minute mehra liye 25 minutes padhaye 2:48 minutes apni tareef kiye.... bohot sahi 😊

[@madhavirahamatkar1830]

After 2 days my science exam is there please hope for me 😥

[@swagatikakuanr9916]

I hope you you will get good marks

[@MayaSharma814]

Kitne marks mil gye bhai

[@fatimajameel8659]

Abhi padrahe ho?

[@vibhukumarshukla6751]

Best of luck bro

[@arnamawasthi5403]

@@vibhukumarshukla6751 you are 28 day late bro 😂😅

[@kartikchandra4258]

last mein toh book se hi padna padta hain sari definition😢😢😢...

[@demented_person_1]

Tomorrow is my final exam😅

[@Anshika-do2gs]

Mine also 😂😂

[@AmiPanchal-k9x]

Same here broo 😂

[@HimanshiSadhu9294]

12:31
Sir it says that all rays go in se direction not in opposite direction

[@krishnaagrahari7819]

Thank u so much sir for teching us , i m a student of hindi medium but i can understand everything what u r teaching since 6th class .i m very grateful . Keep it up sir and make more session like this

[@ujjawalkumar9410]

How did you write this?
By translating 😂😂😂😂

[@PrinceGupta-mz4ui]

Teaching ki spelling check krlo😂

[@amanmehta2146]

Sir please explain again how mutiple umage is formed in kaliesioscope and waht is kalideoscope

[@cricmirch8104]

Nice session sir I am bsc student student but now I did realize something wrong after watching 👀

[@pagal_gaming-26]

Sir.,please give me definition of "how can a mirror produced exact reflection..?

[@sanvirathore2015]

20:02 yes sir it's parallel

[@meenakshialexzander168]

My exam is in like a week this helped a lot thank u so much ❤😊😊

[@brockytigchamper3987]

All the best

[@Vinita-w4m]

Today is my science paper 😢😢

[@Vinita-w4m]

For you all the best

[@Hell_king_ghost]

I have exam tommorow and Instead of continuing the video I am looking at the circle and square lol

[@shalinichauhan5050]

hahahahahahahahah sooo funny

[@ojas485]

Sir What Will Be The Lateral Inversion Of The Word Ambulance

[@adityasingh10th71]

Sir if our eyes is sensitive so why astronaut can see sun rays clearly?
🤨🤨

[@adityasingh10th71]

9

[@hashtag_komal_chaudhary]

They see through sunglasses 😎

[@sanskritishivhare8409]

Thankyou sir for this session you made all the concepts easy

[@anjusharma6770]

sir kaunsa chapter hai?????
sir page no.?????

[@Yo.memes01]

back bencher be like this..

[@roufpathan5700]

PLZ START NOW SIR

[@abhinavtheconqueror7]

27:08 A, H, I, M, O, T, U, V, W, X and Y.

[@ChandGulaabi]

motu🤣🤣

[@shatrughanlalchaudhary8234]

Ya❤🎉😂

[@ayushkumarmahatha6890]

Sir you teach very good and entertaining

[@ShivkumarSingh-sp4nk]

The image formed is virtual

[@samimaaktara5900]

Yes

[@niranjanprajapati8153]

Sir if we point a laser in still water what happens

[@drajaysharma3085]

Is dangerous lazour can be reflected

[@carunews1968]

Yes because its also a type of light
But with high intensity

[@RadhikaKohli-w7c]

What is surface

[@neerajsmali9447]

Thnk you sir it helped me alot

[@deepikayadav8995]

Such a amazing session.. adorable....it made my all concepts clear..
1 like= 99.9+ (don't take risk)

[@ManojKumar-em9eg]

What is normal????

[@ekamjotsingh3962]

PLZ DO ONE VEDIO ON MICROORGANISM

[@progaming-12344]

27:49 E is symmetrical diagonally

[@arifgamer-jx1sq]

sir what is snell`s law

[@rajveersingh1359]

Sir what is kaleidoscope

[@carunews1968]

It’s a device used for fashion designing and is based on principle of multiple images

[@soniatiwari8871]

Sir how to make pericope 42:09

[@AmbariJawed]

Light is source of energy which helps us to objeat

[@jeetSingh-mn3qx]

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

[@mdstarff1012]

Ni hota esa

[@VaishnaviK-x9k]

Im from class 6 can you tell what is a mindmap im seeing it in almost every comments in live chat box 🖤🖤

[@QFGAMING]

how does images appear 3d in mirror if the mirror is 2d l x b

[@howtousebrain]

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..

[@ishantchardeyt2160]

18:44

[@Adityalongadge]

Thanks you sir 😊 for explaining this chapter😊

[@kalawatidevi3845]

Sir please make kaleidoscope and periscope ..

[@QFGAMING]

how is glass on our window transparent

[@nimmypynadth9817]

Thank you sir and byju's

[@PooH2578]

Sir I don’t understand periscope

[@MonikaGupta-vy9qd]

Same

[@abhimade9016]

I want to join but i don't know how to join

[@subhan8thstd196]

Mat join kar bekar hai

[@beenaillathukandy]

Please take class completely in english

[@vivanswondrfulworls.....6533]

There are 2 laws of reflection

[@Godplayer884]

Sir is table a polished surface

[@Wewewe754]

yes

[@anamikabalmiki4816]

Sir... So amazing session... All doubt are clears.. 😁 you example in own words and simple words.... So easily Everyone will understanding conceptions..💯💓And...
Thank so much sir... 💓💗

[@meenachaudhary847]

Good video Sir
Thank you for Good explanation

[@dineshpoonia5862]

13:56 thik ja bhai

[@aloksharma304]

2:52 2:54 2:55

[@royalsingh-fj6tw]

😍😍😍 sir thank what are you doing

[@sunilkumarkularia4913]

16:02

[@IndraKumariBudha]

Sir thank you exam pe full launga

[@girishsharma9427]

sir your short is very easy

[@ProfiMotivationking]

Sir how to make Periscope

[@arnamawasthi5403]

😂😂😂what a question 😂 why you want to make it

[@dhivyaa.t8126]

Can u pls teach in full english as i doesn't know hindi ...😊

[@abhinavtheconqueror7]

21:17 False.

[@AdityaKumar-yz4uk]

I have a doubt

[@Ds-hm1ml]

What is menti?

[@SandhyaRani-wx2fm]

Same syllabus as like FIITJEE I'm a student of FIITJEE byjus is super shaurabh

[@quazizeeshanahnad787]

Sir I am from Australia.But sir I can understand everything that you teach. I

[@shrestha9976]

Love from india

[@SamikaShetty]

35:03 KALEIDOSCOPE

[@vindhwasisiupadhyay7425]

❤❤❤

[@user-xyz...]

Best of luck for your tomorrow exam 😂😂😂😂😂

[@kailashjajoriya1033]

😅

[@arish.fxtbl1]

guys one tip, watch in 1.5x it saves your time...

[@__am001]

What is reflection

[@ranijain9224]

Thanks sir really good samajh aaya tho mja aaya maja aaya to samjh aaya

[@Vedank1928]

Sir apke head par se Bhot zyada reflection hota hai

[@poonampanchal4159]

4:32 video starts

[@entertainmentandsuccess]

❤❤😊

[@Cutie--akshu-yg4cl]

Example for computer disk

[@KurshidAhmadNath]

Thku sir❤

[@okdude8687]

video starts from 4:28, thank me later...

[@archnapandey5485]

Thank you sir for this great session!😄It will help me in my exams, thank you so much.🙂🙂

[@byjus-class-678]

Glad to hear that, All the best for exam🙂

[@Hxdufxgxigcjhcu._.]

Good luck for ur exms

[@CHARANSINGH-gw8lk]

Good luck dear ❤

[@rashmisrivastava332]

15 degree in 10 :43

[@Daksh051]

Sir, will a plane mirror always do lateral inversion?

[@sunitamishra6043]

Yess

[@surendrapanditji2336]

Ya

[@kalpanabellale1726]

Kaleidoscope can be also made up of a goldex pen😅