Question

an incident ray strikes a plane mirror at an angle of 20 degree with the mirror the angle between the incident ray and reflected is

Answer 1

1. As we know that angle between normal and incident ray is called angle of incidence.
2. The angle between reflected ray and normal is called as angle of reflection.
3. As angle of reflection is equal to angle of incidence.
4. aur ans will be.......
angle between
reflected ray and
incidence ray = angle of incidence + angle of reflection
therefore it is 20° + 20° = 40°