A certain type of glass has an index of refraction of 1.60. What is the critical angle between this type of glass and air?

1 Answer
Gió
Jul 31, 2016

I found #38.68^@#

Explanation:

The critical angle corresponds to a beam that is deflected back into the first medium with no refraction inside the second.
We can consider the initial critical angle when the beam is refracted along the boundary between the 2 media and use Snell's Law:
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