Question

if two plane gives 11 image find out angle between them​

Answer 1

The formula to find the number of images between two mirrors inclined at theta deg to each other is 360 theta - 1 = 11, or

360/theta = 12, or

theta = 360/12 = 30 deg.

The two mirrors are inclined at 30 deg to each other.

Answer 2

Answer:

30 deg... .........................