Question

If a ray passing through the focus gets refracted by a convex lens, where will it intersect the principal axis?

• A. At focus on the other side.
• B. At the pole of the lens.
• C. At double the focal length on the other side.
• D. Does not intersect at all.

Answer 1

The correct option is D

Does not intersect at all.

For a convex lens, a light ray passing parallel to the principal axis converge at focus. Applying the principle of reversibility, the light ray passing through the focus will take a path parallel to the principal axis after getting refracted by a convex lens.