To get three images of a single object, ...

To get three images of a single object, one should have two plane mirrors at an angle of …..

`90^@`

`120^@`

`180^@`

`360^@`

Text Solution

Verified by Experts

The correct Answer is:

A, B

The number of images formed by two plane mirror n = `(360^@)/(theta)`-1
where `theta` is the angle between two plane mirrors
Now taking n = 2
`therefore2+1=(360^@)/(theta)`
`therefore theta =(360^@)/(3)=120^@`

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