JEE Main 2014 Physics question

PhysicsRay Optics and Optical InstrumentsJEE Main 2014

In a compound microscope the focal length of objective lens is 1.2 cm and focal length of eye piece is 3.0 cm. When object is kept at 1.25 cm in front of objective, final image is formed at infinity. Magnifying power of the compound microscope should be:

Answer: (1)

Solution

For the objective, gives , so v = 30 cm and $ = =

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Question ID VK-104459