Question

When does a ray reflect along the same path from a concave mirror?​

Answer 1

Answer:

The ray of light passes through the centre of curvature of a concave mirror it strikes the mirror along the normal ray It incidences on to the mirror at an angle of 90 degrees. Hence the incident ray coincides with the normal..

Answer 2

Explanation:

A ray of light passing through the centre of curvature of a concave mirror is reflected back along the same path because it strikes the concave mirror at right angles to its surface due to which the angle of incidence and angle of reflection both are oo.