(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The figure shows a light ray incident on a glass cylinder where h = R/9. At what angle α will the ray be refracted?

(Image Attached)

2. Relevant equations

n(sin(theta))= N(sin(THETA))

3. The attempt at a solution

I'm not sure how to attack this problem. I've thought of using Snell's law:

1 sin (90) = 1.52 sin (THETA)

But I stopped myself mid-equation because then the R/9 is useless. I have decided to make R= 1 and then h= 1/9 (just to make things simple. I drew the picture and then extended out the refracted arrow, trying to figure out a way to use geometry, but I just can't place it.

Can anyone help me out?

Thanks in advance!

~Phoenix

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# Homework Help: Refraction in a Glass Cylinder with just 1 Number

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