Question

write about angle of incidence​

Answer 1

Answer:

In geometric optics, the angle of incidence is the angle between a ray incident on a surface and the line perpendicular to the surface at the point of incidence, called the normal. ... In the figure below, the line representing a ray makes an angle θ with the normal (dotted line).

Answer 2

Answer:

when a light ray hits boundary of a medium the angle formed by the ray with the normal is called the incident re