Question

Two mirrors are arranged parallel and facing each other with some distance between them. How many images are formed for a point object kept between them?

Answer 1

The solution is:

Step 1: Given:

The angle between the two mirrors is: $\theta =0^o$

Step 2: Formula for calculation:

The number of images formed is $n=\frac{{360}^o}{\theta }-1$

Step 3: Calculation:

The number of images formed is

$$\begin{gathered} n=\frac{{360}^o}{\theta }-1 \\ =\frac{{360}^o}{0^o}-1 \\ =\infty -1 \\ =\infty \\ n=\infty \end{gathered}$$

The diagram of this would be:

Conclusion:

1. The image formed in one act as the object for the other mirror. This causes multiple image formations.
2. Initial three images are clear, whereas the further are distorted images.

Thus, number of images formed between parallel mirrors facing each other kept at a distance is $n=\infty$.