Question

52. How many images of an object will be formed when the object is placed between two plane mirrors which
are inclined at the following angles to one another ?
(a) 120 degree (b) 45 degree (c) 180 degree (d) 60 degree (e) 90 degree​

Answer 1

Answer:

The Formula to calculate the no of images of

an object placed between 2 plane mirrors.

(360/A° - 1) where A° us the angle.

Let's us solve it in the following situations :-

(a) 120°

(360°/ 120° - 1)

=> 3 - 1

=> 2

Hence, 2 images are formed

(b). 45°

=> (360° / 45° - 1)

=> 8 - 1

=> 7

Hence, no. of images formed is 7

(c). 180°

=> (360° / 180° - 1)

=> 2 - 1

=> 1

Hence, no. of images formed is 1

(d). 60°

=> (360° / 60° - 1)

=> 6 - 1

=> 5

Hence, no. of images formed is 5

(e). 90°

=> (360° / 90° - 1)

=> 4 - 1

=> 3

Hence, no. of images formed is 3

Hence, Solved.