How many images of a candle will be formed if it is placed between two parallel plane mirrors separated by 40 cm?

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°

(b) 45°

(c) 180°

(d) 60°

(e) 90°

Two plane mirrors are set at right angles to each other. A coin is placed in-between these two plane mirrors. How many images of the coin will be seen?

Explain why, when an object is placed between two plane mirrors inclined at an angle, then multiple images are formed.

How can you show that white light (say, sunlight) consists of seven colors?