Question

What would have happened if angle of incidence not equal to angle of reflection? Why?

Answer 1

Answer:

So is a reflected one for which the angle of incidence equals the angle of reflection. Notthat the angle of incidence does not equalthe angle of reflection in all cases, such as a diffraction grating. ... The angle between anincident ray and a reflected ray is 120⁰.

Answer 2

Answer:

I do no know!!???????????