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.
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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💗💯✨

[@anjuanju9607]

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

[@VinayaksinghChawda-wp1bu]

Me

[@neerajthakran2520]

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

[@srkdon-n5t]

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

[@BajiKaisuke-tc1pq]

Reflected light can BL reflection again

[@chetnasingh114]

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

[@harshadgoswami7836]

My science exam is tomorrow Pray for me

[@anshhh950]

How did it go

[@user-jh8zd8dw9h]

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..!!

[@ishantchardeyt2160]

18:44

[@demented_person_1]

Tomorrow is my final exam😅

[@Anshika-do2gs]

Mine also 😂😂

[@user-vk7ur8xt9s]

Same here broo 😂

[@manujoji2524]

Vote for surabh sir SURABH SIR 👍. 👇

[@kartikchandra4258]

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

[@Hemanthkumar-it5ev]

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

[@gunguntagore8912]

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

[@byjus-class-678]

Most welcome 😊

[@muthuvel9407]

thankyou sir @@byjus-class-678

[@meenakshialexzander168]

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

[@brockytigchamper3987]

All the best

[@user-qz3ds1hh4y]

Today is my science paper 😢😢

[@user-qz3ds1hh4y]

For you all the best

[@okdude8687]

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

[@sanvirathore2015]

20:02 yes sir it's parallel

[@nayansharma2697]

Sir thoda hindi bolliya karo

[@roufpathan5700]

PLZ START NOW SIR

[@Vedank1928]

Sir apke head par se Bhot zyada reflection hota hai

[@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 😂😅

[@dnspranav]

32:37 infinite hair tunnel of doom

[@aloksharma304]

2:52 2:54 2:55

[@user-xyz...]

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

[@kailashjajoriya1033]

😅

[@TanjikoGaming]

Refraction of light?

[@dikshasen7116]

Thanyou sir sir aap ne bhot aacha padhaya

[@vikaschaudhary7252]

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

[@user-hi6df4ns4i]

Light is source of energy which helps us to objeat

[@Hell_King_69]

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

[@shalinichauhan5050]

hahahahahahahahah sooo funny

[@abhinavtheconqueror7]

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

[@ChandGulaabi]

motu🤣🤣

[@shatrughanlalchaudhary8234]

Ya❤🎉😂

[@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

[@ManojKumar-em9eg]

What is normal????

[@sunilkumarkularia4913]

16:02

[@cricmirch8104]

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

[@neerajsmali9447]

Thnk you sir it helped me alot

[@PooH2578]

Sir I don’t understand periscope

[@ayushkumarmahatha6890]

Sir you teach very good and entertaining

[@abhinavtheconqueror7]

21:17 False.

[@saifajavaidwani]

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

[@NarendraSahu-nm9jk]

51:00 Yes

[@devishwarchand6382]

Topper students be like Sir I got 21/20 after seeing this video 😂😅

[@user-zo5zf4ot8h]

What is surface

[@ekamjotsingh3962]

PLZ DO ONE VEDIO ON MICROORGANISM

[@adityasingh10th71]

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

[@adityasingh10th71]

9

[@hashtag_komal_chaudhary]

They see through sunglasses 😎

[@sunitakumarisk4087]

46:48

[@amanmehta2146]

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

[@nimmypynadth9817]

Thank you sir and byju's

[@QFGAMING]

how is glass on our window transparent

[@niranjanprajapati8153]

Sir if we point a laser in still water what happens

[@soniatiwari8871]

Sir how to make pericope 42:09

[@dineshpoonia5862]

13:56 thik ja bhai

[@user-xq5ej6uv9r]

My 1 like gave this video 4k likes

[@sanskritishivhare8409]

Thankyou sir for this session you made all the concepts easy

[@drajaysharma3085]

Is dangerous lazour can be reflected

[@carunews1968]

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

[@kalawatidevi3845]

Sir please make kaleidoscope and periscope ..

[@niravshelat583]

reflection

[@girishsharma9427]

sir your short is very easy

[@sanvirathore2015]

21:26 False

[@ShivkumarSingh-sp4nk]

The image formed is virtual

[@royalsingh-fj6tw]

😍😍😍 sir thank what are you doing

[@jatinderkour9580]

Thank you so much

[@HimanshiSadhu9294]

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

[@AdityaKumar-yz4uk]

I have a doubt

[@samimaaktara5900]

Yes

[@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

[@user-gu1hh7uf6f]

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 "😊❤

[@Dilsonkusulia13]

Sir speak in Hindi please

[@rajveersingh1359]

Sir what is kaleidoscope

[@carunews1968]

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

[@jppangoswami5617]

sir i am 5'9

[@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..

[@Godplayer884]

Sir is table a polished surface

[@Wewewe754]

yes

[@ojas485]

Sir What Will Be The Lateral Inversion Of The Word Ambulance

[@anjusharma6770]

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

[@Yo.memes01]

back bencher be like this..

[@arifgamer-jx1sq]

sir what is snell`s law

[@user-og6cn9gx1w]

Sir thank you exam pe full launga

[@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😂

[@cricketwithrudrakshandsaty2307]

My height 5.9 ft age 12.7

[@harshfreefiregamer4036]

😍😍😍😍😍thank you sir

[@SamikaShetty]

35:03 KALEIDOSCOPE

[@user-ib5ew9on6b]

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

[@teengamerofficial]

Litterlly he wasted more than 5 minutes😅😅

[@jatinderkour9580]

Hi sir my exam is after 2 days

[@ProfiMotivationking]

Sir how to make Periscope

[@arnamawasthi5403]

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

[@vivanswondrfulworls.....6533]

There are 2 laws of reflection

[@kalpanabellale1726]

Kaleidoscope can be also made up of a goldex pen😅

[@ranijain9224]

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

[@abhimade9016]

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

[@subhan8thstd196]

Mat join kar bekar hai

[@progaming-12344]

27:49 E is symmetrical diagonally

[@VishalPawar-gf3wx]

Sir I score 76

[@entertainmentandsuccess]

❤❤😊

[@ziaulrahman1793]

U M O A W X V T 27:11

[@Abhinavchoudhary9766]

Sorry 5:53

[@owaizkhan4175]

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

[@intekhabalam7628]

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 ....

[@malothshruthi_17]

What is tallentex exam?

[@intekhabalam7628]

@@malothshruthi_17 it is a scholarship exam conducted by Allen institute

[@beenaillathukandy]

Please take class completely in english

[@RitaBehera-jp3uk]

Good evening sir

[@__am001]

What is reflection

[@premchandlilhore6672]

sir I am making best marks In paper help you.❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤🎉❤🎉🎉❤🎉❤🎉❤🎉❤🎉❤🎉❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤