Question

10. The angle of incidence for a ray of light passing through the centre of curvature
of a concave mirror is-
(a) 45° (b) 0° (c) 180° (d) 90°​

Answer 1

Answer:

when a ray of light incident on concave mirror from its center of curvature it retraces the path of the incident ray i.e., it goes along the same path. hence incident ray coincides with the normal. so angle of the incidence is zero.