Question

Free of light incident on a plane mirror at an angle of incidence 45 degree the deviation produced in the reflected ray with respect to incident ray is

Answer 1

devation angle is always equals to

180 - 2i or 180 - 2 r

here,

angle of incidence is equal to 45°

then angle of deviation is equal to =

= 180-2×45

=180-90

=90

the answer is 90

Hope it helps you