Question

The number of images formed by two plane mirrors inclined at an angle ${60}^{\circ }$ of an object placed symmetrically between mirrors is

• A. $6$
• B. Infinite
• C. $5$
• D. $7$

Answer 1

The correct option is C $5$

The number of images formed by two plane mirrors inclined at an angle ${60}^{\circ }$ when an object is placed symmetrically is
$\text{n}=\frac{{360}^{\circ }}{\theta }=\frac{{360}^{\circ }}{{60}^{\circ }}=6=\text{even}$
$\text{n}=6-1=5$,
where $\text{n}$ is the number of images.