Question

hi
Two vertical plane mirrors are inclined at an angle 60 with each other. A ray of light travelling horizontally is

reflected first from one mirror and then from the other. The resultant deviation is:

A) 60 B) 90 C) 120 D) 150

this answer is not 240
answer is among options​

Answer 1

Answer:

A ray of light travelling horizontally is reflected first from one mirror and then from the other. The resultant deviation is.

Answer 2

Answer:

Accoding to me I think 120 is the correct answer.