Question

An incident ray through the focal point of a spherical mirror will:

Answer 1

Answer:

option (c)

Explanation:

There are the rules to draw the ray diagrams for a mirror.

1. If a ray is incident on a spherical mirror parallel to the principal axis, then after reflection it passes through the focus of the mirror.

2. If a ray is incident on the spherical mirror passing through the focus, then after reflection it becomes parallel to the principal axis.

3. If a ray is incident on the spherical mirror passes through the centre of curvature then after reflection is retraces its path.

So, is an incident ray passes through the focal point of the spherical mirror, then it reflect parallel to the principal axis.

Answer 2

Reflect parallel of the principal axis