Question

(b)
Trace the path of a ray of light passing through a right angled
glass prism (ABC) as shown in figure. If the refractive index
of glass is 3. Find out the angle of emergence from the
prism. (Angle of incidence on face AC is 90°, In prism angle
B is 90° and angle C is 609)
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Answer 1

Explanation:

I know how to deviate the light ray but sorry I don't know the calculations