Question

to get 9 multiple images the angle between two plane mirrors should be

Answer 1

answer : 36°

explanation : The number of images formed between two plane mirrors inclined at an angle θ to each other is given by formula, n = (360/θ) - 1.

case 1 : when (360/θ) is an even integer then number of image formed , n = (360/θ) - 1

case 2 : if (360/θ) is an odd integer and object is kept symmetrically

then number of image formed , n = (360/θ) -1

and if object is kept asymmterically then number of image formed, n = (360/θ).

Let's assume that object is kept as symmetrically.

then , number of image formed , n = (360/θ) - 1

⇒9 = (360/θ) - 1

⇒ 9 + 1 = 360/θ

⇒θ = 36°

Answer 2

Answer:

Explanation:

36°