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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

A convex lens produces 4 times magnified erect image. If the focal length of the lens is 20 cm, magnitude of image distance is [MHT-CET 2020]

Answer: (C)

Solution

Erect image is virtual: , , so giving cm and

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Question ID VK-069515