Question

An insect is travelling in between the two inclined mirrors as shown in the figure. The number of images formed of the insect by the mirrors are

• A. $4$
• B. $5$
• C. $6$
• D. $7$

Answer 1

The correct option is B $5$

Given:
Angle between the mirrors, $\theta ={72}^{\circ }$
So, $n=\frac{{360}^{\circ }}{\theta }=\frac{{360}^{\circ }}{{72}^{\circ }}=5$
Since, $n$ is odd and insect travels asymmetrically, therefore, the number of images formed $=n=5$