Question

A ray of light crosses the boundary between some substance with n = 1.37 and air,...

A ray of light crosses the boundary between some substance with n = 1.37 and air, going from the substance into air. If the angle of incidence is 20◦ what is the angle of refraction?

Calculate to 1decimal.

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Answer #1

SOLUTION:

The angle of incidence is  

Substance of boundary is

Let's the angle of refraction is   at air

and substance of air is  

we know that,

The angle of refraction is  

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