All Exams Test series for 1 year @ ₹349 only
Question

When a parallel beam of light passes through a convex lens, after refraction it:

This question was previously asked in
RRB Group D 2024 Question Paper PDF (27-Dec-2025) (Shift 2)
The correct answer is

converges to a point on the principal axis

A convex (converging) lens is thicker at the centre than at the edges. When a parallel beam of light (rays parallel to the principal axis) passes through it, the lens bends all rays inward so that they meet at a single point on the principal axis — the principal focus (F).

This is the defining property of a converging lens: it converges parallel light to the focal point. The image formed at the focal point is real, inverted, and highly diminished (point-sized).

The correct answer is A: converges to a point on the principal axis.

Was this answer helpful?

Similar Questions

  1. An image is formed at a distance of 30 cm from a convex mirror when the object is placed 40 cm from the mirror. The magnification produced by the mirror will be _______.

  2. Which of the following is NOT the correct use of a concave mirror?

  3. The image formed by a concave lens for an object at infinity is:

  4. The magnification of a concave mirror is −1. Which of the following statements is correct about the position of the object?

  5. The power of a lens is given as the reciprocal of its:

  6. An object is placed at a distance of 40 cm from a convex lens of focal length 10 cm, such that an image is formed at a distance of X cm from the lens. What is the value of X?


Important Questions from Refraction and Reflection

  1. A convex lens of focal length f will form a magnified real image of an object, if the object is placed.

  2. A ray of light travelling in the direction \(\frac{1}{2} (\hat i + \sqrt 3 \hat j)\) is incident on a plane mirror. After reflection it travels along the direction  \(\frac{1}{2} (\hat i - \sqrt 3 \hat j)\)  The angle of incidence is:

  3. Twinkling of stars is due to atmospheric

  4. An optical fibre has a core material of refractive index of 1.55 and cladding material of refractive index of 1.50. The numerical aperture of the fibre is

  5. A lens has a power of +2.0 Dioptre, Which one of the following statements about the lens is true?

Need Expert Advice?
Upcoming Exams
RRB NTPC
September 27, 2026
Test Series
RRB Group D img
Railways
RRB Group D Mock Test Series 2026 (Latest Pattern)
1154 Tests 1 Tests Free
1632 Attempts
4.1(101)
English, Hindi

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App