Reflection laws proof using Huygen's principle | Wave optics | Physics

Reflection laws proof using Huygen's principle | Wave optics | Physics | Khan Academy

Рет қаралды 123,221

3 жыл бұрын

Huygen's principle states that every point on a wavefront behaves as a source for secondary waves, whose common tangent (envelop) becomes the new wavefront. Using this principle, let's prove the laws of reflection
Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Donate here: www.khanacademy.org/donate?ut...
Created by Mahesh Shenoy

Пікірлер: 127

@jivanrana5041 2 жыл бұрын

Why is this video so underrated?????this is the perfect video for this concept

@sinhaji6469 Жыл бұрын

Imperfect logo ko perfect chij smjh ni aati isliye

@Rahuljoshi008 Жыл бұрын

yes bro, if i could found this video earlier my exams might ended up good

@INGENUITY_ Жыл бұрын

It's due to thumbnail

@scatterdraysofhope 10 ай бұрын

Ikr this video is literally a GODSEND

@classymfrevival 6 ай бұрын

True af bro

@Rohan_Mahato 3 жыл бұрын

0:36 getting goosebumps. Thanks for such a clear concept.

@jothehaathinarayanan3073 2 жыл бұрын

Same here. Really it's very clear. 100%. After seeing this, I've no doubts💯

@gamiumdev 2 жыл бұрын

1:40 finally found the use of setsquare.

@rajdeep__ 2 жыл бұрын

lmao

@HeRoisDreamin 2 жыл бұрын

Lmao

@PavithranD22 3 жыл бұрын

If We had great teachers like this in Every indian schls , Imagine the level of the development we would reach in the upcoming decades .....

@lissiebrown101 3 жыл бұрын

This was so good, you made it really clear to understand. Thank you so much!

@duggchi5277 3 жыл бұрын

Really appreciate it

@iammiban 2 жыл бұрын

I bilieve that this is the Mosr Underrated channel, It is so informative and so east to understand, Stuff that takes hours to be explained in class is explained in minutes here. Thankyou So much KhanAcademy Team!!

@beawesome5090 3 жыл бұрын

I AM JUST SPEECHLESS Thank you so much for posting this video 😊😊keep going 👌👍👌👍

@egginashell 3 жыл бұрын

this is the first time i had to step away from my always go to tutor channel bec for the first time I couldn't understand their explanation about Huygen's....then I found this. Oh my gosh with the animations and everything thank you so much !! it is so thoughtful and thorough!! I can't visualize it so this really is so clear.

@b.jeevikaxi-a8634 Жыл бұрын

No one could have taught this to me this crystal clear Thanks for the awesome video. Thank you sir

@kryt7955 2 ай бұрын

AWESOME EXPLANATION!! Just what I was looking for. You are a gem of a teacher.

@kaushikvada5899 3 жыл бұрын

The best way of teaching. Absolutely Mind blowing!!!!

@snehamajee3912 3 жыл бұрын

Animation is amazing . Specially 0.47. It's just like a real feeling as if everything actually happening in front of me (3D) Thank you

@nida8516 2 жыл бұрын

Wow I'm not a science student and i got it. Brilliantly explained

@manishsambare9123 2 жыл бұрын

fall in love with the concept... thx for efforts

@priyankakhuntia2185 2 жыл бұрын

Thank you sir 😊for this video. It help me a lot to imagine the process which I can't able to imagine by only reading the books.

@hannanoushad8088 Жыл бұрын

I think physics is all about understanding the concepts, Thank you for making the concept crystal clear.

@dimitrijevicveljko Жыл бұрын

This is an awesome lecture, clear and pleasant presentation. Thanks!

@gaurinarke7172 2 жыл бұрын

It was great... Made the concept clear... Thank you sir....

@nongsim7733 2 жыл бұрын

I have seen lots of videos in this same topic and it's the best to understand concepts.

@thingintresting5495 8 ай бұрын

It's great thing about you sir that you motivate us to think and and Prove the conclusions by our own

@siyaramsingh7915 3 жыл бұрын

different type of teaching.... unique..

@akshadaphatak7493 2 жыл бұрын

Seriously I understood each and every thing 😀😀thank you..

@Beastfootballedits1 11 ай бұрын

Everything is perfect well illustrated . Thanks sir for sharing ❤

@abeshenam9967 3 жыл бұрын

Best explanation I have ever seen on this topic. Thanks a lot.🥰🥰🥰

@rajanikantsingh3795 Жыл бұрын

What a wonderful animation this is! Fantastic! Mind blowing animation.

@williamstephenjones3863 Жыл бұрын

These India Khan Academy vids are always excellent

@domadoma.05domadoma 22 күн бұрын

Great channel with lots to learn！

@talatzone4607 3 ай бұрын

Excellent! i got it as clear as crystall

@doomedgoomed4298 Жыл бұрын

This is called killer visualisation Rocking bro💯💯💯💯💯

@Zeta_1729 3 жыл бұрын

Cleared the doubt

@santhoshssss3071 2 жыл бұрын

Really fantastic

@dharmendrarathod3753 2 жыл бұрын

Great explanation sir, 👌 👏 😀 🙌 I have ever learned this chapter in this was.

@sanmeetkaur209 5 ай бұрын

WOW,Sir...Thank you soo much

@mahmudamim2040 3 жыл бұрын

Fascinating ❤️❤️❤️

@Danger12618 Жыл бұрын

your way of teaching is totally awesome 😎👍🏻

@rrinvestors1960 3 жыл бұрын

Super teaching

@shreyaanbajpai2641 2 жыл бұрын

Wow! AMAZING!

@piya6730 10 ай бұрын

Amazing illustration

@s.s.sharma_official Жыл бұрын

I am really amazed by your teaching style 😮😯

@zyxwvutsrqponmlkjihgfedcba26 9 ай бұрын

Thanks man

@edmondallan466 Жыл бұрын

finally i understood this topic

@runzit2007 3 жыл бұрын

Excellent

@nishi15115 10 ай бұрын

Best vdo of this concept ❤

@divy_maurya Жыл бұрын

Thank you do much

@dasoshmi 7 ай бұрын

Perfect explanation

@lakshmanank56 Жыл бұрын

Thank you

@jim8113 10 ай бұрын

Of course it’s Khan academy with the quality uploads! ❤

@snehadadhich350 2 жыл бұрын

nice explaination

@pankajpandey5977 2 жыл бұрын

Thank you sir

@Mokientertainment623 3 жыл бұрын

Salute my bro

@aleezanoor8013 3 жыл бұрын

Thank you so much!💜💜💜💜

@aprildagon2354 2 жыл бұрын

Thnks a ton sir ❤❤❤❤❤❤❤

@letslearn5480 Жыл бұрын

Sir Seriously woww Best teacher of physics I would say ❤️❤️

@lavanyaravi916 3 жыл бұрын

Hats off🤓

@ABUSALEH-fk9bq Жыл бұрын

YEAH....ANOTHER ONE❤❤❤❤

@vandanaarya6691 2 жыл бұрын

Thank you...... really a great help By the way, which software are you using for explanation. Reply would be greatly appreciated!! Thank u once again

@rahulsingh-pf5xn 3 жыл бұрын

Amaaaaazinggggggggggggg First vdeo that make me understand in one shot Although i m starter 10th, still i understand 90%, that left 10% is of terminology and rules fr waves behavior like it should be perpendicular, wavefront, active pointd etc. Bt i m sure as soon as i learn abt them it will be crystal clear fr me 😄😄😄😄 Thankkk u sirrrrrr

@gowtham3065 2 жыл бұрын

Semma vroo

@iftekharahmad2564 3 жыл бұрын

Thankyou

@anishaghosh101 3 жыл бұрын

Victory for Huygen

@zanaahmadi6844 2 жыл бұрын

Thank you so much

@bigwig9372 2 жыл бұрын

Great.great.great

@achyutharaman9172 Жыл бұрын

This video is so good! 😭

@igorkoodziej6225 2 жыл бұрын

Love you bro

@msvishalmsvishal213 2 жыл бұрын

Nice 👍👍☺️

@mahmudamim2040 3 жыл бұрын

Booyahhhhh🔥

@hzshad8560 3 жыл бұрын

thank you sooooooooooooooooooooooooooooo much

@bivektamang460 2 жыл бұрын

wow

@mihreteabgirma6351 3 жыл бұрын

Pure like a 1000 kg/m3 density 💧🚰🚿 People have to pay to watch this video!

@Cherrilady83 5 ай бұрын

Khan academy ❤Thank u so much...My teacher is useless, bruh I didn't learn anything..i am not dumb if was I then I wouldn't understand this video...

@Ramancoachingcentre 3 жыл бұрын

Sir aapke saare video kaha milege

@Riteshsingh-ji2rj 3 жыл бұрын

Sir on which application you teach.

@anindamajumder7303 Жыл бұрын

Which software you are using to draw the diagrams sir?

@anilloura9498 3 жыл бұрын

Sir, Which software you are using?

@theinvertedperson6310 2 жыл бұрын

What do you mean by Huygens source getting activated?dosent it always remains activated

@lshashank6 3 жыл бұрын

Sir will I be able to get your all 12th class videos by Jan 2021

@chanukyachowdary1252 Жыл бұрын

AAA congruency rule would have been much easier to workout. But, anyway the video was wonderful.

@thingintresting5495 8 ай бұрын

❤

@jarifahmed977 Жыл бұрын

♥️♥️♥️

@peterkellermann7495 2 жыл бұрын

👍👍

@suppandi425 3 жыл бұрын

That the teaching

@PW_Rockstar Жыл бұрын

LOVE YOU 3000000000000000000000....

@sharonjoe7535 2 жыл бұрын

Where is the donate button?

@duhom1665 10 ай бұрын

Q. Light assummed a ray is for ray optics but here in wave optics, we still have rays together wavefront...🤷

@yoihensanark6114 3 жыл бұрын

Can someone explain me how the angle between surface and the reflected wavefront = r

@user-qo2mo6cn4r 3 жыл бұрын

The sum of a triangle is equal to 180 degrees. We have a 90 degree and a (90-r) degree. For that reason the missing angle is equal to r because 90+(90-r)+M(missing angle)=180 => M=180-[90+(90-r)] => M=180-180+r => M=r. I hope that you find it helpful.

@yoihensanark6114 3 жыл бұрын

Thanks a lot man! Now i understand it clearly

@rajdeep__ 2 жыл бұрын

@@user-qo2mo6cn4r thnx 😁

@williamstephenjones3863 Жыл бұрын

Great, thanks. Besides this point, the video is flawless.

@VG__ 2 жыл бұрын

2:17 7:28

@davincibuddha 10 ай бұрын

At 8:30 can someone explain this if outside angle is r and one inside angle is 90-r and other inside angle is also r?

@davincibuddha 9 ай бұрын

I got the answer thanks..

@Tan_cannon 3 жыл бұрын

You just saved my 1hr

@abhinavjain7008 2 жыл бұрын

I swear to god, this chapter is gonna be the death of me

@duggchi5277 3 жыл бұрын

Creed

@prakashpandey96 2 жыл бұрын

👍👍👍👍👍👍👍👍👍👍👍👍

@revathirajasekaranghsskali9453 Жыл бұрын

This is enough for neet?

@fuzzywuzzy599 2 жыл бұрын

Huygen says...

@abhiramyadav1988 22 күн бұрын

But the angle between i&r is 90

@Dhyaneshwar-um6ln 6 ай бұрын

Why reflected and incident wavefront have same speed

@imawesome4 4 ай бұрын

Because they're in the same medium.

@spurti 2 жыл бұрын

Wait how does the mirror produce 2° waves???

@SreenikethanI 2 жыл бұрын

reflection

@KajalGupta-nt4po 3 жыл бұрын

Ye dislike krne wala kon h bhai🤦🤦🤦

@vassmiklos 2 жыл бұрын

from 0:32 to 0:52 the purple vector is not normal to incident ray's wavefront. So in the end, the angles of directions (purple and yellow) dont seem equal.

@SonaliKumari-by1tb 3 жыл бұрын

Too good...thanks🤎 Understood the concept clearly 🤝

@kavirufernando1732 3 жыл бұрын

Can't you do it with one ray? Why can't you draw a wave front with one light ray?

@sooyeah7367 3 жыл бұрын

yes we can draw , becoz.. rays are perp to w.f but in this case we need to get the angles similar.. aand to make that simple we need to check for congruency.. hence 2 rays

@sooyeah7367 3 жыл бұрын

moreover for a plane wf. we need to take parallel rays so..

@narenprakash6732 3 жыл бұрын

There is nothing called one wave of light. Its always a wavefront according to huygens