Question

If a ray of light appears to meet on the focus of the concave lens on the same side as that of the source of light, then what is the correct path for the incident ray?

• A. Incident ray is parallel to the principal axis.
• B. Incident ray strikes the optical center of the lens.
• C. Incident ray is passing through the focus on the same side as that of the source of light.

Answer 1

The correct option is A Incident ray is parallel to the principal axis.

When a ray is initially parallel to the principal axis of a concave lens, after refraction it appears to pass through focus.