For a prism of apex angle 45°

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

Problem

For a prism of apex angle 45°, it is found that the angle of emergence is 45° for grazing incidence. Calculate the refractive index of the prism. (a)

(2)^{1/2}

(b)

(3)^{1/2}

(5)^{1/2}