RRB Group D (Level-1 posts) 2022 · Question 325 of 598

Magnification produced by a lens is equal to:

Au/v
B-v/u
Cv/uCorrect
D-u/v

Answer: C. v/u

Explanation

The magnification (m) produced by a lens is defined as the ratio of the height of the image (h') to the height of the object (h). In terms of distances, magnification is also given by the formula: m=v/u where: v = image distance from the lens u = object distance from the lens Thus, the magnification produced by a lens is equal to v/u.

Source: RRB Group D 2022 Prev. Yr. Paper (18 Aug 2022) (Shift 2) - Prepp · reliable-secondary

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