The light refraction can be used in the clinical significance in medicine especially in the optometry, the ophthalmology and the orthoptics, the refraction is also known as the refractometry which is used to determine the eye’s refractive error and the best corrective lenses to be prescribed. To access all videos related to Reflection and Refraction, enrol in our full course now: bit.ly/ReflectionAndRefraction To watch more Physics videos, click here: bit.ly/PhysicsVideos_DMYT
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This video is helping me when my schools are closed due to covid 19 Also I think there are many who will benefit from the videos A great thanks to the creato4
Thanks Abhay for your appreciation. We are really happy to hear that it was helpful to you. We are glad that you understood the concept. Do support us by subscribing to our channel. 👍👍
For the ones interested, here there is an explanation of refraction (very simple), using the conservation of momentum of photons: If in medium 1 the index of refraction is n1 and in medium 2 the index of refraction is n2 and for the definition of index of refractions and wavelength we have: n1 = c / v1 , v1 = λ1 * f n2 = c / v2 , v2 = λ2 * f Dividing the above equations we obtain: n2 / n1 = λ1 /λ2 So if n2 is higher than n1, the wavelength in medium 2 is smaller than in medium 1. Now because the photon momentum is: p = h / λ Applying the conservation of momentum of the incident and transmitted photon along the parallel line of medium separation: p1 = p2 → h/λ1 *sin(θ1) = h/λ2 *sin(θ2) → n1 *sin(θ1) = n2 *sin(θ2) This is the Snell Law!! So the refraction is just a consequence of the conservation of momentum of photons!
The answers are : 1) light always travel in wavefronts and wavefronts are parallel to each other, when incident ray enters the glass slab the speed light lights slows down and the wavefronts inside the water travels short distance whereas the wavefronts in air will travel more distance and when the wavefronts will completely get inside the water they will be bended and their speed will also get slow, but till the time they are inside water they will travel straight and when they will again come to rarer medium (air) the wavefronts in air will again travel more distance compared to the wavefronts in water and when they will completely get outside from water light speed will increase again and will continue to travel in a straight line.
You're most welcome Shrish and Thanks for your appreciation. We are glad that you understood the concept. You motivate us to do better. Keep watching our videos : )
Thank u alot for making this channel and helping us I didn't understand this consept but after watching this video I had no questions . I am clear and guys can you pray for me because tomorrow is my test of class 5 so please 🙏
this is great, but i doesn't explain why the light waves actually refract, it explains how, but the why has to be answered using quantum mechanics, or photon and electron interactions at least.
It's my pleasure. We are glad that you understood the concept. We are happy that we could help you learn. You motivate us to do better. Keep watching our videos. 😊😊
You're most welcome Hanna. We are glad that you understood the concept. We are happy that we could help you learn. You motivate us to do better. Keep watching our videos : )
Your way of teaching is really awesome... It helped me a lot... Many more thanks for making me understand the concepts easily... Superb explanation 👌... Thank you
Any words are few to say about the videos uh make!! Such a pleasure uh give to us..we,the viewers_the students, REALLY REALLY to be very very honest I can write a full page article on ur beautifullllll explanation...but restricting myslf to a few words I just wanna say keep making such video Caz uh don't know how ur videos bring up a SMILE on someone's face and strengthen their hearts wid d pleasure of learning!!! I want to meet wid uh some day...Am really a HUGEEEEEEEEE FANN of urs
Thank you so much Sriram for your appreciation. We are glad that you understood the concept. For more videos, please visit our website - dontmemorise.com/
@@InfinityLearn_NEET I thought this is a good channel but not anymore, I went into the website you mentioned, it showed me sign up it's free but nothing is free inside full commerical......
My pleasure Falak Fatima. We are glad that you understood the concept. We are happy that we could help you learn. Do support us by subscribing to our channel. 👍👍
I still haven't quite understood why does it bend? I understood the rule, but didn't understand why does it have to be so. Why can't the ray travel at a lower speed inside and through the glass without bending. And why does it bend towards the normal?
You're most welcome Sandeep Thanks for your appreciation. We are glad that you understood the concept. You motivate us to do better. Keep watching our videos : )
Thank you so much Anchal for your appreciation. We are happy that we could help you learn. We are glad that you understood the concept. Keep watching our videos. 😊😊
Thank you so much Vinay for your appreciation. We are glad that you understood the concept. For more videos, please visit our website - dontmemorise.com/
Is water optically rarer than air? I thought water is optically denser than air... so when the light enters from a optically rarer to optically denser medium, the speed of light will decrease and the light will bend towards the normal. But why does the light bend away from the normal and even greater than in glass..
The light refraction can be used in the clinical significance in medicine especially in the optometry, the ophthalmology and the orthoptics, the refraction is also known as the refractometry which is used to determine the eye’s refractive error and the best corrective lenses to be prescribed.
To access all videos related to Reflection and Refraction, enrol in our full course now: bit.ly/ReflectionAndRefraction
To watch more Physics videos, click here: bit.ly/PhysicsVideos_DMYT
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Ma'am you are really awesome teacher. Thank you so much for your great explanation
Literally it's my pleasure that I got such a fantastic channel.....😘😍
I'm glad to hear that. Thank you for sharing and thanks for watching! :)
Reallyy mam
Yes man really this channel is best in my view it is even better than byjus
Yaah
It's not your channel bruh
Thank you so much you saved me ❤
Thank you so much now I can clear my st
Thank you for tell us about refraction of light
This video is helping me when my schools are closed due to covid 19
Also I think there are many who will benefit from the videos
A great thanks to the creato4
Thanks Abhay for your appreciation. We are really happy to hear that it was helpful to you. We are glad that you understood the concept. Do support us by subscribing to our channel. 👍👍
Same
For the ones interested, here there is an explanation of refraction (very simple), using the conservation of momentum of photons:
If in medium 1 the index of refraction is n1 and in medium 2 the index of refraction is n2 and for the definition of index of refractions and wavelength we have:
n1 = c / v1 , v1 = λ1 * f
n2 = c / v2 , v2 = λ2 * f
Dividing the above equations we obtain: n2 / n1 = λ1 /λ2
So if n2 is higher than n1, the wavelength in medium 2 is smaller than in medium 1.
Now because the photon momentum is: p = h / λ
Applying the conservation of momentum of the incident and transmitted photon along the parallel line of medium separation:
p1 = p2 → h/λ1 *sin(θ1) = h/λ2 *sin(θ2) → n1 *sin(θ1) = n2 *sin(θ2)
This is the Snell Law!!
So the refraction is just a consequence of the conservation of momentum of photons!
You call this simple?
This is helping very much during these tough times
We are glad to make learning easier
Aren't you sad you are giving it free , actually you are feeling regret about giving it free
@@apricity192 they make money by adds lol
Thank you for really breaking this down
❤ love towards this channel 😊
i needed this to revise for my coming test.. thank you !!
The answers are : 1) light always travel in wavefronts and wavefronts are parallel to each other, when incident ray enters the glass slab the speed light lights slows down and the wavefronts inside the water travels short distance whereas the wavefronts in air will travel more distance and when the wavefronts will completely get inside the water they will be bended and their speed will also get slow, but till the time they are inside water they will travel straight and when they will again come to rarer medium (air) the wavefronts in air will again travel more distance compared to the wavefronts in water and when they will completely get outside from water light speed will increase again and will continue to travel in a straight line.
This taught me more in 10 minutes than my teacher did in some days
Masha allah very nice teaching and i understand very welll
This is great
You guys knw, i hated science now i m in lovd with it.the credit is all yours@DontMemorize.
Wonderful explaination maam.
This channel removes all my doubts...
when my teacher also doesnt u understand something she refers to u
❤
Wow such a good way of teaching 💚💚💚 MashaAllah❤ Thank you so so so much 💚💚💚💚
Most welcome, Deena!
We are glad, you like our way of teaching.
Happy learning to you! 🙂🙂
Way better than my physics and chemistry teacher . Makes my studies much easier
When you didn’t focus in online school so you’re watching videos the night before the exam trying to figure out wtf is going on 🤪✌️
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same
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Plot twist: we have to register to access all the videos on this topic 😂
very helpful video . now i am clear with this refraction concept
Thank you don't memorise .... I got a wonderful channel.... 🥰😘
Well done sir
The best part of this channel is the duration of videos, sometimes lengthy videos made you cringe.
Tnx alot I litteraly have a test in 10 mins and your vids are short
Exam....
Best 👍🏻👍🏻 channel for studying physics
This whole channel is part of my academic comback in science class
thanksfor making such a video it lets me understand eveything so easily
It teachs more things
Supper madam ur explanation
Thanks alot for your assistance
Shall be great ful to u
Thanks for such easy explanation.
You're most welcome Shrish and Thanks for your appreciation. We are glad that you understood the concept. You motivate us to do better. Keep watching our videos : )
Thank u alot for making this channel and helping us I didn't understand this consept but after watching this video I had no questions . I am clear and guys can you pray for me because tomorrow is my test of class 5 so please 🙏
Now I have clear my doubt. Thank you so much ❤️❤️❤️
Yes
THANKS for explaining so well 😊😊
Thanks for the explanation mam
It's my pleasure Nivedita. Do support us by subscribing to our channel🙂👍
Fun to learn like this before exam 😃😃
awesome explanation
superrrrrr
This is really very helpfull..
this is great, but i doesn't explain why the light waves actually refract, it explains how, but the why has to be answered using quantum mechanics, or photon and electron interactions at least.
Maam your videos help me a lot
Parvagila ok
u made my life easier ...THANK YOU SO MUCH😁
Bakwass
Sorry for that
Thank you so much.
Thx so much mam
This content is not just for present. students can learn in the future too
Thanks, the explanation is great..... Liked the video... By the way, which video editor do you use??... Please reply soon....
Thanks
Wonderful explanation
Thank you for your comment.
Happy Learning :)
Kindly make video on class 9 maths...
You explained well! I've got the topic easily, thanks for it!👍🏻
It's my pleasure. We are glad that you understood the concept. We are happy that we could help you learn. You motivate us to do better. Keep watching our videos. 😊😊
Nice explanation 💯💯💯💯
Please create a lesson on Vernier callipers
It will be slightly different as speed of light in water is different from speed of light in glass
Really fantastic
Excellent
Thanku soooooo much😘❤️
This video is very helpful 🤩
Thanks Don’t Memorise for such an amazing video 💙
Is angle of incidence always equal to the angle of refraction?
Thank you so much mam for such an excellent explanation❤️. I am preparing for my competitive exams and these videos are helping me a lot.
How was your competative exams
This is for grade 8 portions right? @Don't Memorise
Amazing video just what I need in order to clear my exam on the topic of refraction
Thanks a lot ma'm.. it's really amazing explanation. I understand clearly
You're most welcome Hanna. We are glad that you understood the concept. We are happy that we could help you learn. You motivate us to do better. Keep watching our videos : )
I liked the explanation.Thanks for explaining so well.😊😊
Nice thanks a lot
Please do videos in Calculus
Very nice explain 👍👍👍👍
Underrated Channel ❤️❤️❤️
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Nice explanation mam
Your way of teaching is really awesome...
It helped me a lot...
Many more thanks for making me understand the concepts easily...
Superb explanation 👌...
Thank you
Thanks a lot for your appreciation, Sandhya!
We are glad our videos are easy for you to understand.
Keep watching! 🙂🙂
Thnkyu so much
In simple words
Which video editor did you use
thanks so much. What program did you use to do this explanation, please ?
adobe bitch
mashalllah
It is wonderful explanation.👌👌👌👌
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Nice explanation
nicely explained
Great videos, great work, go on😍😉
I loved the way of your teaching
Any words are few to say about the videos uh make!! Such a pleasure uh give to us..we,the viewers_the students, REALLY REALLY to be very very honest I can write a full page article on ur beautifullllll explanation...but restricting myslf to a few words I just wanna say keep making such video Caz uh don't know how ur videos bring up a SMILE on someone's face and strengthen their hearts wid d pleasure of learning!!! I want to meet wid uh some day...Am really a HUGEEEEEEEEE FANN of urs
Thank you so much! This helped me alot to understand this topic
Magnification part 2 ?????
Simply wonderful....
Thank you so much Sriram for your appreciation. We are glad that you understood the concept. For more videos, please visit our website - dontmemorise.com/
@@InfinityLearn_NEET I thought this is a good channel but not anymore, I went into the website you mentioned, it showed me sign up it's free but nothing is free inside full commerical......
Thanks for this video 👍
My pleasure Falak Fatima. We are glad that you understood the concept. We are happy that we could help you learn. Do support us by subscribing to our channel. 👍👍
I still haven't quite understood why does it bend?
I understood the rule, but didn't understand why does it have to be so.
Why can't the ray travel at a lower speed inside and through the glass without bending.
And why does it bend towards the normal?
Bro because light posses shortest path but you can watch hc verma for it
Really really very helpful 🙂🙂
Glad it was helpful for you and We hope that you understood the concept. For more videos, please visit our website - dontmemorise.com/
Hi
Fantastic channel to understand any disunderstandable concept especially in SCIENCE and MATHEMATICS
THANKS!😇😇👌👌👍👍🎉
You're most welcome Sandeep Thanks for your appreciation. We are glad that you understood the concept. You motivate us to do better. Keep watching our videos : )
you helped me alot for my boards
thnx m'am
The video was so nice to get the concept very clear 🙂
I hope 🤞 you will carry on your work 😃☺️
Thank you so much Anchal for your appreciation. We are happy that we could help you learn. We are glad that you understood the concept. Keep watching our videos. 😊😊
I think speed of light in air is 3*10-8 ms1 and in glass 2*10-8 ms1 so why it is speed in glass
Thank x
You’re welcome, Mir Iru! Keep watching 😊
Nice video I learnt a lot
Thank you so much Vinay for your appreciation. We are glad that you understood the concept. For more videos, please visit our website - dontmemorise.com/
Is water optically rarer than air? I thought water is optically denser than air... so when the light enters from a optically rarer to optically denser medium, the speed of light will decrease and the light will bend towards the normal. But why does the light bend away from the normal and even greater than in glass..
Look, glass has a denser medium than water so the speed of light in water is more than glass
Super