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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

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

B

`(-hat i-hat j- hat k)/sqrt(3)`

C

`(hat i+hat j+ 2hat k)/sqrt(3)`

D

`(hat i-2hat j- 2hat k)/sqrt(3)`

Text Solution

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The correct Answer is:
B
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