Question

If two plane mirrors are placed at an angle of 30⁰, then the number of images will be
(a)10
(b)11
(c)12
(d)13​

Answer 1

Answer:

b) 11

Explanation:

The formula to find the number of images formed when mirrors are kept at an angle θ is

n= (360/θ)-1

where n is the number of images formed and θ is the angle between the mirrors.

Here, θ = 30

Therefore, n= (360/30)-1

                    = 12-1

                    =11