Question

The angle of incidence is the angle between the incident ray of light and the mirror.why?

Answer 1

well the answer is still not found for this one!

we may relate this with the english language!...

as 'incident' means that occurring at any instant

and as the light ray is caught by the mirror at any instant and at any part/point of the mirror ( or the shiny surface ... whatever you call it)

observer might had named it as incident ray

by the way

this is never asked in physics all you need to do for this is to practice neumericals and ray diagrams

...

hope this might help you✌