Target Exam

CUET

Subject

Physics

Chapter

Ray Optics

Question:

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:

Options:

(A) and (C) only

(B), (C) and (D) only

(A) and (B) only

(A) only

Correct Answer:

(A) and (C) only

Explanation:

The correct answer is Option (1) → (A) and (C) only

(A) The power of a lens is the ability of the lens to converge or diverge the incident rays. (Correct)
(B) S.I unit of the power of a lens is dioptre while focal length is in centimetres (Incorrect)
(C) For a lens of larger focal length, power is smaller (Correct)
(D) In any combination of lenses, the power of combination is not algebraic addition of power of combined lenses (Incorrect)