Question

Two plane mirrors are placed parallel to each other at a distance L apart A point object O is placed between them at a distance $\frac{L}{3}$ from one mirror Both mirrors form multiple images The distance between any two images cannot be _________

• A. $\frac{3L}{2}$
• B. $\frac{2L}{3}$
• C. $2L$
• D. $none$

Answer 1

Answer: (A)

$\frac{3L}{2}$

Please refer below image.
On the left side the distance between two images will be $=4L/3$ and on the right side the distance between the two adjacent image is $=2L.$
Hence, the distance cannot be $3L/2$.