Two plane mirrors are inclined at

PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

40^{\circ}

. A light ray strikes mirror

M_1

making an angle of

10^{\circ}

with the surface of

M_1

and is then reflected from

M_2

. What is the angle between the initial and the final directions of the ray after the two reflections? (a)

60^{\circ}

(b)

40^{\circ}

(c)

80^{\circ}

(d)

100^{\circ}