Question

a light ray strikes a prism normally on face ab what will be the angle of incidence on faces ab and ac​

Answer 1

Answer:

Explanation:

Since the ray strikes normally at the surface AB, the angle of incidence for AB is 0

o

. The ray strikes surface AC. The angle between the ray and the surface AB is 30

o

(total internal angle of a triangle is 180

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) and hence the angle the ray makes with the normal to surface AC is 60

o

which is the angle of incidence.