An object approaches a convergent lens from

Question:

An object approaches a convergent lens from the left of the lens with a uniform speed 5 m/s and stops at the focus. The image

(a) moves away from the lens with a uniform speed 5 m/s

(b) moves away from the lens with a uniform acceleration

(c) moves away from the lens with a non-uniform acceleration

(d) moves towards the lens with a non-uniform acceleration

Solution:

(c) moves away from the lens with a non-uniform acceleration

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