Calculating Magnification of a Simple Microscope: Focal Length 5 cm & Least Distance of Vision 25 cm

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Question

A simple microscope has a convex lens of focal length 5 cm. If the least distance of distinct vision is 25 cm, the magnification of the microscope in normal adjustment is:

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Simple Microscope MagnificationConvex Lens Focal LengthLeast Distance of Distinct Vision

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