Question

The angle at which a ray of light be incident on
the face of a glass prism of refracting angle
60° such that it suffers total internal reflection
at the other face is (u of glass = v
V2
(A) sin - ( +sin 15°)
-1
(B) sin (V3 sin 15°)
(C) Sin-1
(V2 sin 15°)
-1
(D) sin
(sin 15°)​

Answer 1

Answer:

Hence, the angle of incidence is 29.75°.