Question

how many image seen when two plan mirror are held at right angle​

Answer 1

Answer:

we have formula

n=(360/theta)-1

by using this formula we obtain 3images.

Explanation:

n= no.of images

=>n=(360/90)-1

=>n= 4-1

=> n= 3

so,a total of three images Will be formed

Answer 2

Answer:

3

Explanation:

There is a formula to find this:

If " n" is the angle b/w the plane mirrors, no. of images formed are 360/n. If 360/n gives an even number, subtract 1 from it. If 360/n gives an odd number, that is the number of images formed.

In the question, angle is 90 degrees.

Images formed = 360/90 = 4.

As it is even, subtract 1.

4-1=3

So 3 images are formed.

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