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) Derive an expression for unit vector along reflected ray (hat r) if unit vectors hat i and hat n represents unit vectors along incident light ray and normal (at point of reflection and outward from surface) respectively. (b) If vector along the incident ray on a mirror is -2 hat i+ 3 hat j + 4 hat k . Considering the x-axis to be along the normal. Then, find the unit vector along the reflected ray.

Unit vector along the vector hat(i) + hat(j) + hat(k) is

let vec a= ( hat i+ hat j+ hat k) then find the unit vector along this vector

let vec a= ( hat i+ hat j+ hat k) then find the unit vector along this vector

let vec a= ( hat i+ hat j+ hat k) then find the unit vector along this vector

The unit vector along hat(i)+hat(j) is

The vector - hat i+ hat j- hat k bisects the angle between the vector vec c and 3 hat i+4 hat j . Determine the unit vector along vec c .

Write the projection of vector hat i+ hat j+ hat k along the vector hat j .

The projection of the vector hat i + hat j + hat k along the vector hat j is