Question

when two plane mirrors are placed at an angle of 45degree find the no. of image seen.

Answer 1

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Answer 2

If two plane mirrors are placedtogether on one of their edges so as to form a right angle mirror system and then the angle between them is decreased, some interesting observations can be made. One observes that as the angle between the mirrors decreases, the number of images that can be seen increases.

Now ...... Formula to find the no.of images formed by a plane mirror : N=360/a-1 where N=no.of images formed a=angle between 2 plane mirrors.

1.a=45

N=360/45-1

N=8-1

N =7

2.a=60

N=360/60-1

N=6-1

N=5