Question

Estimate the number of images produced if a tiny object is kept in between two plane mirrors inclined at 35°, 36°, 40° and 45°.

Answer 1

As ni is non-integer, N₁ = integral part of n₁ = 10

As n₂ is even integer, N₂ = (n₂ – 1) = 9

As n₃ is odd integer.

Number of images seen (N₃) = n₃ – 1 = 8 

(if the object is placed at the angle bisector) or Number of images seen (N₃) = n₃ = 9

(if the object is placed off the angle bisector)