Question

Two plane mirrors are inclined at an angle of 60. The number of images of a ball placed in between the mirrors will be

Answer 1

The formula to find Number of images (n) formed between two plane mirrors inclined at angle, θ between them is as follows:

Number of images formed (n) =

$\frac{360}{θ} - 1$

Substituting the different values of angles between two inclined mirrors we can tabulate the answer as given in table:

Angle between two mirrors : Number of images formed(n)

45° : 7

60° : 5

120° : 2

180° : 1

0° : Infinite(∞)

Therefore,Number of images formed when Angle between the two mirrors is 60° is 5.

Hope this answer helps you and clears your concept.

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Regards:

Aakash Maurya