Refractive index of a prism is and the angle of prism is

PHYSICS · Single correct · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments

Problem

Refractive index of a prism is

\sqrt{\frac{7}{3}}

and the angle of prism is

60^\circ

. The limiting angle of incidence of a ray that will be transmitted through the prism is approximately: (1)

30^\circ

(2)

45^\circ

(3)

15^\circ

(4) None of these