Question

In order to get 5 distinct images of an object, two plane mirrors should be placed at an angle of:

• A. ${30}^0$
• B. ${60}^0$
• C. ${75}^0$
• D. none of these

Answer 1

The correct option is B ${60}^0$

Let the angle between the mirrors be $\theta$.

So, $5=\frac{360}{\theta }-1$

or, $\theta =\frac{360}{6}={60}^0$