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A ray of light is incident on a plane mi...

A ray of light is incident on a plane mirror along a vector `hat i+hat j- hat k.`
The normal on incidence point is along `hat i+ hat j `.Find a unit vector along the
reflected ray.

A

`-(1)/(sqrt 19)(- 3 hat i + 3 hat j + hat k)`

B

`(1)/(sqrt19)(3 hat i + 3 hat j - hat k)`

C

`-(1)/(sqrt19)(hat i + hat j + hat k)`

D

`hat k`

Text Solution

Verified by Experts

The correct Answer is:
C
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