Question

law of refration and types mirror

Answer 1

Consider a light-ray incident on a planemirror, The law of reflection states that the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. Furthermore, the angle of reflection is equal to the angle of incidence . And
mirror are of three most types
1) plane mirror
2)concave mirror
3)convex mirror

Answer 2

1. angle of incidence is equal to the angle of refraction.
2. ratio of sin of angle of incidence and angle of refraction is always constant.
types of mirror: plane ,convex,concave.