Question

A light is incident on face AB of an
equilateral glass prism ABC. After
refraction at AB, the ray is incident on face
BC at an angle slightly greater than critical
angle so that it gets reflected from face BC
and finally emerges out from face AC. Net
deviation angle of the ray is 112°
anticlockwise. The angle of incidence''
has value.
A
С
B.​

Answer 1

Answer:

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Step-by-step explanation:

After refraction at AB, the ray is incident on face BC at the critical angle so that it gets reflected from face BC and finally emerges out from face AC. Net deviation angle of the ray is 112º anticlockwise.