Question

If a ray of light that is incident on a convex lens is parallel to its principal axis the refracted ray passes through.

1. F2

2.2F2

3.O

4.Principal axis.​

Answer 1

If a ray of light that is incident on a convex lens is parallel to its principal axis the refracted ray passes through 2.2F2.

• If a ray of light that is incident on a convex lens is parallel to its principal axis the refracted ray passes through the second focus of the convex lens.
• After refraction by a convex lens, parallel rays of light intersect at a point on the primary axis because a convex lens is a converging lens.
• Therefore, all the rays will refract and converge towards the opposite side of the lens that is the second focus 2F2.

Answer 2

• If a ray of light that is incident on a convex lens is parallel to its principal axis the refracted ray passes through the second focus of the convex lens.

• The parallel rays of light after refraction by a convex lens, intersect at a point on the primary axis as a convex lens is a converging lens.

• Therefore, all the rays will refract and converge towards the opposite side of the lens that is the second focus.

So, the correct answer will be option 1 that is F2