Q. If two mirrors are kept at $60{^\circ}$ to each other, then the number of images found by them is
A) 5
B) 6
C) 7
D) 8
Explanation
(a) Number of images $n = \frac{360{^\circ}}{\theta} - 1$
Where, $\theta\ =$ angle between mirrors
Thus, $\theta\ = \ 60{^\circ}$
So, number of images
$n = \ \frac{360{^\circ}}{60{^\circ}} - 1\ = \ 5$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.