Question

If two mirrors are inclined at some angle and an object is placed between the mirrors and there are $7$ images formed for an object, then the angle between the mirrors is

• A. $54^\circ $
• B. $45^\circ $
• C. $60^\circ $
• D. $64^\circ $

Answer 1

Answer: (B)

$n=\frac{360 ^\circ }{\theta }-1=7$
$\Rightarrow \frac{360 ^\circ }{\theta }=8$
$\theta =45^\circ $