Prism X is made of flint glass with and and has an apex angle

PHYSICS · Single correct · CBSE · Physics · The Human Eye and the Colourful World · The Human Eye and the Colourful World

Problem

Prism X is made of flint glass with

\mu_v=1.75

and

\mu_r=1.65

and has an apex angle

3^\circ

. Prism Y is made of crown glass with

\mu_v=1.54

and

\mu_r=1.52

. What should be the apex angle of prism Y so that both prisms produce the same angular separation between violet and red rays? (a)

14^{\circ}

(b)

22.8^{\circ}

(c)

15^{\circ}

(d)

18^{\circ}