Light travelling in air strikes a flat piece of uniformly thick glass at an incident angle of 60.0°, as shown. If the index of refraction of the glass is 1.50, (a) what is the angle of refraction θA in the glass; (b) what is the angle θB at which the ray emerges from the glass?
According to Snell's Law
a) When ray strikes the thick mirror
b) when the light emerges out from thick mirror
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