Thank you for the comment. I appreciate it.

Thank you so much! You are the best! I am preparing to enter university and this is one of the topics I will be tested in. I wish there were more people like you!

Thank you so much for these videos! If you take a look at 4:03 in the video, I think a simpler way to describe that angle is as follows: -we know theta1 is 45 degrees -theta1 and the angle opposite to it are...well "opposite angles" therefore they are equal -the angle we are interested in finding is simply the opposite angle - theta2 :) Thanks again for your videos, you're an amazing lecturer. I especially like all the little hints and explanations you do, my professors would simply assume we knew ALL math we ever used in physics and they would PURELY teach physics. I like how you actually EXPLAIN how you find your angles and such, it really helps!

You are welcome. Glad it helped.

You is amazing. My name is mark and I am from egypt and you help me to know the refraction of light lesson. thank you very much you is the best

this has been of great help to me.

Thank you so much for for this thorough explanation. Found it just in time.

Thank you very much sir...all the way from Papua New Guinea..Port Moresby

So to find an angle at theta 4, you need to work sequentially from the theta 1 angle first using Snellen's law and assisted by triangle formulas.

Thank you so much ..that helped me a lot ur student from Egypt :)

Hello Michel, I was wondering if it matters whether you use 1.5 or 1.6 as the index of refraction for glass. I saw that you used 1.6 in the previous example but for this one you used 1.5

Could you please explain how you knew that the angle of incident light in n1 was 'parallel' with the normal at the n3-n4 boundary? Do you assume that this is a right angled prism? How do you know that theta3 = 45' - theta2? I apologise if I've misunderstood a step.

This is very helpful but I think the answer to the last refraction angle is 25.81 ( my calculation without rounding any number) ~ 25.85 (follow your calculation) degree. The difference is only 0.04 degree. 25.6 is a little bit too low, isn't it? Please nevermind! Thank you very much for your lessons!

Thank You Very Much This Really Helped, Thumbs Up :)

Very nice explanation

appreciated to a great degree

Sir please upload a video explaining how to calculate angle of Daviation and apex angle. that would be so kind of you. thanks

I can see that the first angle is an alternate angle with the 45 degree angle, but if it is not explicitly stated in some way, how can I assume they are alternate?

Amazing explanation thank you!

Heartfelt thanks :)

Thanks a lot!

thank you very much for the video but I asked where did 1,5 come from? Thank you very much sir in advance

Hi! thanks for the video, there's only one thing that isn't clear to me, why theta 3 is different from theta 2? why the angle changes?

really helpful

what if a light ray was traveling from the right side into the vertical surface of a glass prism?

Thank you so much sir! I love your bow tie :D

can you use spells law to find theta 3 instead of getting it by using geometry?

thank u very much.

I understand 70%. I forgot I knew about alternate interior angles...

Thnk you so much sir..❤

What level is this tutorial series

Thank you so much, may I HAVE YOUR E-MAIL? It would be nice if you helped understand many things by answering diffirent questions about PHYSICS, THANK YOU :D

3iach ta3 miricane

And that's all I have to say about that

You made my face hurt.

if the angle is equal to 45 degree it'll be too easy

🥰🥰🥰

take another angle in the beginning and another prism this is lame... but good explanation

zy66

Thanks a lot!