Huygen's principle of secondary waves | Wave optics | Physics | Khan Academy

[@tia568]

sometimes i wonder how the ancient people understood the theories and principles without animations...we're so blessed. thank u!!

[@shivanisoni3339]

They had an amazing power called imagination and their hypothesis too are so correct, which are based on these imagination only.

[@879-0]

Imagination is everything

[@zakirshah5060]

Imagination is important than knowledge in physics Einstein

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Yes we are

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[@hanniehmar8885]

Huygens principle couldnt possibly be explained better than this, you did a terrific job!

[@LaxmiVangala-up1xz]

That's right

[@vishalbalaji2007]

Hi , which college are you studying in ?? I am curently studing in 12th grade

[@kperiyasamy216]

Still his videos are underratted, hope everyone utilizes it

[@vishalbalaji2007]

Hi , which college are you studying in ?? I am curently studing in 12th grade

[@toluenestar2172]

You just come up with really amazing questions which arise in curious minds and u explain to a naive really well

[@dazaiosamu3660]

FInally understood the undeerlying concept behind Huygen's principle. Thanks for all the videos

[@Puh539]

I just want to say "Thank u sir "

[@vishalbalaji2007]

Hi , which college are you studying in ?? I am curently studing in 12th grade

[@Jawaab01]

I always had problem in answering questions on this principle but no more Thank you You're one of the best ❤❤

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The teaching is just perfect.❤️

[@Rohan_Mahato]

This is what I was finding. Thanks

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Thanku 😊I was so depressed that I could understand concepts for jee from my coaching classes after ur vdo I got a best basic knowledge and now I'm so happy and feeling motivated

[@alihasanamu]

Wow so beautifully explained ! No fears like in those coaching-led videos to get it until exams are finished huff🙃

[@vishalbalaji2007]

Hi , which college are you studying in ?? I am curently studing in 12th grade

[@vivekgupta3692]

Wow 3 videos back to back .... Awesome thank you 👍

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the most underrated channel on youtube. i mean c'mon he explains so gooood

[@alibaba-wy1iv]

The way you explain is far more clear than any other source I have found, thanks thanks!

[@user24180]

I DONT KNOW HOW MUCH TO THANK YOU. BOTH MY SCHOOL AND TUITION TEACHERS ARE VERY BAD AT TEACHING PHYSICS AND I JUST GET VERY CONFUSED WHEN THEY TEACH. I STRUGGLED SO MUCH WITH THIS CHAPTER AND FINALLY DECIDED TO START AFRESH. YOU EXPLANATION IS AMAZING SIR. THANK YOUU SOO SOO MUCH. I CAN FINALLY UNDERSTAND THIS TOPIC. 💙

[@vishalbalaji2007]

Hi , which college are you studying in ?? I am curently studing in 12th grade

[@smartview8193]

you are the most amazing physics teacher for me.

[@anushkakohle7769]

Thank you so much for the explanation🙏🏻 It really helped me

[@riyarai1086]

Beautifully explained 🤞

[@bbeee_a]

'' imagining lights as waves and not bullets '' wise words!!

[@vishalbalaji2007]

Hi , which college are you studying in ?? I am curently studing in 12th grade

[@brandideruiter6067]

I have been struggling with understanding this and this video gave me so many ah ha moments. Thank you so much. Best explanation I have some across. 🙏

[@lumba2692]

Best explanation I found. Amazing. Can you tell me how wavelenght would affect the angle of diffraction?

[@The_Divert]

Thanks

[@johnraj03]

Thank you very much sir Great explanation sir I understood every point sir Thanks 🙏🙏🙏

[@aamirahmed7659]

Thanks for the amazing explanation.

[@nikhiltewari9524]

Excellent video and teacher altogether. Commendable job 🎉

[@dannyperron6498]

What a good explanation. Thank you.

[@jetome5909]

Explanation in english is what i need 👌

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Thank you sir..ur way of teaching is really amazing..

[@prayanshsharma1832]

One of the best teacher ever.. Thank you so much

[@vishalbalaji2007]

Hi , which college are you studying in ?? I am curently studing in 12th grade

[@PujithaKandula-tm3ts]

Please explain the fresnels diffraction briefly

[@luwi8125]

Thanks for the lesson! :) What program did you use to draw the illustrations? It really made them look good.

[@aroobsheraz6932]

you're so skilfull. amazing explanation

[@smarthereafter5992]

thank you very much for your effort.

[@nikhil_IITK]

Thank you sir what a good explanation

[@YashpalSingh-mu4cp]

Thanks a lot sir...😊

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Yessss, mahesh sir on the channel

[@icarus3797]

Thanks a lot ,sir.

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Fantastic explanation

[@arnabdas2416]

thank you, sir.

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Some people are unlucky for having not watched these useful videos.

[@VG__]

4:55 secondary wavelet 9:29

[@mihreteabgirma6351]

You are the best! Love you bro🤩 Keep up the good work!

[@rank_ki_taiyari]

I am thankfull

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This was so damn good! I don't have words to describe it!

[@vivekgupta3692]

100k congratulations

[@AtiyakousarKousar]

Thi's is good ❤

[@UmangShah-105base8]

06:08 Actually here , the wave contribution is proportional to ½[cos(¤)+1] and for the backwards direction cos¤ would be 180 i.e -1 , ½[-1 + 1] = 0

[@abdullahkhalid6090]

wow wow wow sir. thank u very much

[@prabapraba3091]

U r awesome man

[@erenyeager6668]

I appreciate it

[@wavetraced]

7:30 why would the ripples suddenly begin at the slit? Shouldn't they have been rippling from the source?

[@boaz2453]

Well Explained

[@The_Divert]

Thanks for explaining this but what app are you using for drawing those?

[@anitkumar8484]

Best explanation ever in summary

[@Hemanthdev10]

This is underrated fr

[@vishalbalaji2007]

Hi , which college are you studying in ?? I am curently studing in 12th grade

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@@Hemanthdev10 bro thx for the response, I hv an other doubt , how much did you score in boards bro ??

[@sashwatyo1293]

OMG WAVEFRONTS ASTOUND ME!!!!! 5:30 IS IMPECCABLE

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[@irshadbaig9946]

Super explaination bro.

[@physicslab5787]

Nice

[@arya4532]

Thank you sir

[@VishalKashyap-xv1kt]

What happens in the case of a laser light Or a laser beam ? Why doesn't it spread?

[@firstjm9071]

Thank you !!!

[@sakthivignesh3877]

God level explanation 💯💯

[@dreamskeepmeawake2959]

Tysm

[@ryanizanami4866]

Yes.

[@karthikchowdhari3094]

👍👍👍 thanks

[@samikshadongare9548]

Well ..I wanted to try this but was too lazy to gather all the stuff .. .so I one day just partially closed my eyes, uk with my eyelashes right above my pupil and looked at a distant street light ( kind of replicating the small hole in the cardboard) ...I did actually see how the light rays kind of scatter ...if i look at that street light (which is actually a small bulb) with my eyes open its a different picture while its different with eyes almost closed

[@jatinbhatt7826]

Sir, what software u use to create such an amazing animation?

[@sumankalyantripathy7413]

At 0:51, why is light shown as longitudinal waves, while it’s a transverse wave?

[@sudheerv6941]

Can a common tangent be a curve?

[@helaluddin182]

amazing....❤❤❤❤

[@stripX31]

Watching before 5hrs before exam

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How was exam?😅

[@stripX31]

@@BittuPatel-m6v passed

[@sandrasunny5885]

so what happens if it enter again a finite hole .it's gona be again curved or straight or mix...................

[@ananyaupadhyay5821]

amazingggg

[@charleszr853]

I dont get one thing, so when the plane wave came in from a source the edges didnt bend. But after going through slit, you included the round edge. But shouldnt that also apply to the wavefront before the slit since its also a finite wavefront?

[@mumthas8870]

It doesn’t bent cuz it not a finite plane ,

[@charleszr853]

@@mumthas8870 but how is the wavefront that pass through the slit not a infinite wavefront? Its the exact same as the plane wave coming in but just shorter?

[@vasupatel1567]

Can it's drawback is related to Q.M Coz his and youngs slit experiment are starting points of Q.M

[@marvhartigan3677]

Very nice. This guy is a gem , literally a fucking gem. Brilliant work my man.

[@sashwatyo1293]

Sir I did a project on FRACTALS........and THE CONCEPT OF SECONDARY WAVELETS FOLLOW that !! INFINITE AREA OF WAVEFRONTS!!!!!

[@Sara_sami_0]

Wwoow i want to see that!

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Wow.......😍😍🥰🥰🤩🤩

[@MemoMemo-ly2si]

❤❤❤

[@sathwikbandi5751]

Sir u have shown a 2d wavefronts But I am unable to imagine 3d wavefronts.please can u create 3d wavefronts

[@wavetraced]

3:10 If the light is moving at light speed, how can the secondary waves move faster? Shouldn't any secondary waves be behind a primary wave?!

[@Shrreyy]

I have the same doubt!!

[@Shrreyy]

I think that a secondary wave is just an interpretation of the primary wave after a given time, I mean it tells how the primary wave would look like in the other second or how it will travel.

[@_navamusic3054]

Much better than PW nautankis... !!!

[@amanamin3685]

Wait huygens principle only applies to light right?

[@saminakhatoon7693]

Tnakzxx

[@smdwivedi]

You keep saying ether partical but it was a hypothesis which was later provided wrong

[@hemanibijja2160]

crazy

[@siyaramsingh7915]

🙏🙏🙏🙏🙏

[@IITB_Vikash]

But ether does not exist???

[@NisarAhmad-em2nm]

Like❤❤❤

[@duggchi5277]

Brain

[@studentjoansalvadorlopezbo1836]

El huygens ese tiene un morro que se lo pisa y no tiene ni idea

[@broteendas1194]

The like dislike ratio says it all

[@nafistoki414]

Regretting why I have hated this chapter. 😖

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trying to change accent.

[@aryangod2003]

Of course there is no thing actually like Aether. Idea was abandoned at least since Michelson Morley experiments.

[@arnabdas2416]

Thank you, sir.

[@aridislam7554]

Thanks