Total number of images formed by 2 mirrors placed at an angle of $\theta$ is $\left(\frac{{360}^{\circ }}{\theta }\right)$, where $\theta$ is the angle between two mirrors.

Q. 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.

Q. If two mirrors are inclined at some angle $\theta$. An object is placed between the mirrors and there are 5 images formed for an object, then $\theta$ is may be

Q. Assertion: If the angle between the two plane mirrors is ${72}^{\circ }$ and the object is asymmetrically placed between the two mirrors, then $5$ images of the object will be formed.
Reason: For a given system of mirrors, the total number of images formed due to successive reflection of an asymmetrically placed object is equal to either $\frac{{360}^{\circ }}{\theta }$ or $\frac{{360}^{\circ }}{\theta }-1$ accordingly as $\frac{{360}^{\circ }}{\theta }$ is odd or even respectively.

Q. Two mirrors placed at an angle of $\theta$ produces $5$ images of an object placed symmetrically between the mirrors. The number of images produced when $\theta$ is decreased by ${30}^{\circ }$ will be

Q. Two mirrors at an angle $\theta$ produce 5 images of a point. The number of images produced when $\theta$ is decreased to $\theta -30$ is