Question

The total number of images(n) formed by 2 plane mirrors placed at an angle of $\theta$ is ___, where $\theta$ is the angle between two mirrors.

• A. $n=\left(\frac{{360}^{\circ }}{\theta }\right)-1$
• B. $n=\left(\frac{{360}^{\circ }}{\theta }\right)+1$
• C. $n=\left(\frac{{360}^{\circ }}{3\theta }\right)-3$
• D. $n=\left({360}^{\circ }\right)\times \Theta$

Answer 1

The correct option is A $n=\left(\frac{{360}^{\circ }}{\theta }\right)-1$

The total number of images(n) formed by 2 plane mirrors placed at an angle of $\theta$ is given by : $n=\left(\frac{{360}^{\circ }}{\theta }\right)-1$