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A ray of light falls on a plane mirror. ...

A ray of light falls on a plane mirror. When the mirror is turned, about an axis at right angles to the plane of mirror by `20^(@)` the angle between the incident ray and new reflected ray is `45^(@)`. The angle between the incident ray and original reflected ray was therefore.

A

`65^(@)`

B

`25^(@)`

C

`25^(@)` and `65^(@)`

D

`45^(@)`

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