Question

What is the angle of incidence of a light ray if the reflected ray is at an angle of 800 to the incident ray?​

Answer 1

Answer:

As per the laws of reflection

The angle of incidence= angle i

angle of reflected= angle r

hence as given= angle i + angle r = 80°

so,

angle i = 80 = 40°

2

Hence angle of incidence of a ray = 40 degree