Question

With an object between those, if the angle between two plane mirrors is acute, the number of images formed will be:

• A. more than $3$
• B. less than $3$
• C. more than $1$
• D. equal to zero

Answer 1

The correct option is A more than $3$

If two plane mirrors are at right angles to each other, those form 3 images of an object. ($n=\frac{360}{90}-1=3$)

Further we increase the angle, i.e, when the angle is obtuse, the number of images become less than 3.

And, if we decrease the angle, i.e., when the angle is acute, the number of images become more than 3.