Snell's laws proof using Huygen's principle | Wave optics | Physics | Khan Academy
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 Snell's law of refraction - Ratio of the sine of angle of incidence to the sine of the angle of refraction is a constant.
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Created by Mahesh Shenoy
Пікірлер: 94
Your voice is great which makes things easier to understand which is a great thing for me.
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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@brennanvivaan2290
3 жыл бұрын
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Simple explanation with perfect animation
@davidnath5664
2 жыл бұрын
Yesss
@naman4067
2 жыл бұрын
Kihan sir's work
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i love the way he teaches in his videos, with all the nessecary details and still not spoonfeeding. I request the viewers to actually pause the video when he instructs and try to solve what he says. If you are able to solve it gives you a whole new level of confidence and understanding
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Why is it so hard to imagine a wavefront
@soumyadipbanerjee6744
2 жыл бұрын
Believe me, some of these things are actually very bizarre. I've spent a significant amount of my life trying to understand what a wavefront is 😂😂
@anishaghosh101
2 жыл бұрын
@@soumyadipbanerjee6744 right....
@premium_56
Жыл бұрын
@@anishaghosh101 you should have a rural background to understand wavefronts
@wahidjulfekar
Жыл бұрын
Particles in sync by vibrating at the same time with each other.... And the shape that appears if you look the thing from top veiw is basically the wave front.
@ghostnotbedsheet
Жыл бұрын
It's pretty simple you just gotta see/imagine the waves carefully and you'll get the wavefront
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Great work thanks for making me to understand this concept
Thank you for the explanation. ive been watching many explanations about this from other youtube channel but still cannot fully understand because no animation was used. thank god i found this channel !!
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This is first KZread channel in I understand the concept perfectly thank you sir ❤
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Thanks a lot , Sir.
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Bro made me understand which my 5 physics teachers couldn't do
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Goated video just fits the whole concept in my mind with in minutes
Simply, perfection 💜
Victory for huygens
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Please add this video to the wave optics playlist also make videos on another topic of this chapter because the way you explain makes me love physics ❤❤😀
@mansichandani9024
8 ай бұрын
he has already done that on his website
Light is not really slowing down if it enters an optical denser medium like water but it's the interiaction with the medium which is called group velocity is less than its normal velocity called the phase velocity.
Super explanation
Thank you sir
Hey Master! You are just great !!!
better then school lectures dude literally solved the confusion like it was nothing
Using the same triangle if i calculate the cos i/cos r i get the constant , is that also right?
AWSM :)
I saw a video on Fermilab which basically says that you can't use Huugen's princple to determine the correct path of light through the second medium because you can align the wave fronts in *several ways* in the second medium, only one of which agrees with experimentation. To understand and derive Snell's law correctly, it looks to me like it is necessary to deduce this law from Maxwell's equations.
DOES THE INTERFACE ACT AS A HUYGEN SOURCE OR IS IT THE INCIDENT WAVEFRONT WHICH ACTS A HUYGEN SOURCE...PLZ EXAPLAIN🙏🙏🙏
@thewalkingbringerofdeath3015
3 жыл бұрын
I believe it is the wavefront since the secondary waves originate on the wavefronts emitted by a luminous object.
@srirampatnaik9164
Жыл бұрын
Stop screaming 😱
at 10:58, if it has a slower velocity and speed, shouldn't it take a different time, thus the statement in the video false?
@the__saksham
3 жыл бұрын
no the velocity maybe different, the the time is same. when the endpoint of wavefront touches surface in time 't' then the wavelet produced from the first point will propagate in that time t.
@audreyli9535
3 жыл бұрын
@@the__saksham Ah, ok. Thank you for your response.
Amazing
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5:17 lmao xDD
I came here after viewing the videos of reflection and huygens theory and it just keeps getting better!
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How are time taken equal?
I have one question : when finding the distances, why is the time same for both??
@someones2413
2 жыл бұрын
because they are travelling at the same time, one is just further. We are taking a set time frame and saying that one travelled with a distance of v1t and other with v2t
why will be the time be same in 11:08
@dr.allwyndsouza5246
Жыл бұрын
Same question, one is incident ray other is refracted ray, how can they make both of them simultaneous 😅
❤
First likes 👍
I love you
3:30 11:40
How time is cancelled
😀👍
First View
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So hard
First view
I wish light is not some kind of field
@ernestschoenmakers8181
2 ай бұрын
An eletromagnetic field that is waving but not like normal waves like waterwaves but waves that come in packets called photons.
13th like...
Now 69 comments 😗