List of top Physics Questions on Images Formed By Lenses asked in CUET (UG)

In an experiment with a convex lens, the length of an image is 1 cm, and the object length is 5 cm. If the object is placed at a distance of 40 cm from the lens, then the focal length of the lens is
Which of the following statement(s) is/are correct?
(A) The power of a lens is the ability of the lens to converge or diverge the incident rays.
(B) S.I unit of the power of a lens is dioptre while focal length is in centimetres
(C) For a lens of larger focal length, power is smaller
(D) In any combination of lenses, the power of combination is not algebraic addition of power of combined lenses
Choose the correct answer from the options given below:
If focal length of a concave lens is 50 cm, then the power of the lens would be
The graph shows the variation of the magnification (m) produced by a thin lens with image distance (v). The focal length of the lens is:
variation of the magnification