Question

The number of images formed in two plane mirrors when they are held angle of 90°

Answer 1

Answer:

infinity

Explanation:

Answer 2

Answer:

3

Explanation:There is a formula to be used

Let us assume the angle to be x.

If x is even then formula goes as 360/x.

If x is odd then the formula goes as 360/x-1.

Here in the question x is even number i.e,90°.

So number of images formed is

=360/90

=3 images

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