A ray of light in incident along a vector `hati + hatj - hatk` on a plane mirror lying in y-z plane. The unit vector along the reflected ray can be

The unit vector along vector hati + hatj + hatk is ………..

The unit vector along 4hati-hatj+6hatk .

Find the unit vector along the vector hati + hatj + hatk.

x-y plane separates two media, zge0 contains a medium of refractive index 1 and zle0 contains a medium of refractive index 2. A ray of light is incident from first medium along a vector hati+hatj-hatk . Find the unit vector along the refracted ray.

What is unit vector along 2 hati - 3hatj +6 hatk ?

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.