A point object is placed mid-way between two plane mirrors distan… - Vidyadip

MCQ

A point object is placed mid-way between two plane mirrors distance $'a'$ apart. The plane mirror forms an infinite number of images due to multiple reflection. The distance between the nth order image formed in the two mirrors is

A
$na$
✓
$2na$
C
$na/2$
D
$n^2\, a$

✓

Answer

Correct option: B.

$2na$

b
(b) From above figure it can be proved that separation between nth order image formed in the two mirrors $= 2na$

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