A point object is kept just beyond the first focus of a convex lens. If the lens starts moving towards the right with a constant velocity, the image will

Question

A point object is kept just beyond the first focus of a convex lens. If the lens starts moving towards the right with a constant velocity, the image will, always move towards right, always move towards left, first move towards right and then towards left, first move towards left and then towards right

MARKS App · Accepted Answer

dv dt = v u 2 × du dt V image/lens = v u 2 × V object/lens till u become 2 f , m > - 1 so V image lens > V object lens and the image will move towards left and when u become > 2 f , V image / lens V object / lens and the image will move towards the right.

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