If two mirrors are keps at `60^circ` to each other, then the number of images formed by them is

Options

A. 5
B. 6
C. 7
D. 8

Answer

A

Explanation

KEY CONCEPT: When two plane mirrors are inclined at eaxh other at an angle`theta` then the number of the images of a point object placed between the plane mirrors is `(360^circ)/(theta)-1`,If `(360^circ)/(theta)` is even
Number of images formed `=(360^circ)/(60^circ)-1=5`