Physics
State the direction of incident ray which after reflection from a spherical mirror gets reflected along its own path. Give a reason.
Answer
A ray passing through the centre of curvature of a spherical mirror is reflected along its own path.
A line joining the centre of curvature to any point on the surface of mirror is always normal to it. Thus, a ray passing through the centre of curvature is incident normally on the spherical mirror. Its angle of incidence is zero, therefore, the angle of reflection is also zero. It means that the ray gets reflected along its own path.
Related Questions
How is a spherical mirror used to diverge a beam of light from a point? Name the type of mirror used.
The diagrams (Fig. 5.41) given below show two parallel rays 1 and 2 incident on:
(a) a concave mirror,
(b) a convex mirror.
Draw the reflected rays and mark the focus by the symbol F.
How is the focal length of a spherical mirror related to its radius of curvature?
How is a spherical mirror used to converge a beam of light at a point? Name the type of mirror used.