Question
Question: A point object is placed mid-way between two plane mirrors distance 'a' apart. The plane mirror form...
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
B
2na
C
na/2
D
n2a
Answer
2na
Explanation
Solution
From above figure it can be proved that seperation between nth order image formed in the two mirrors = 2na
