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the distance between the eyepiece and the objective lens in my homemade compound microscope is 23cm....

the distance between the eyepiece and the objective lens in my homemade compound microscope is 23cm. focal length for eyepiece is 2.50 cm and that of the objective lens is 0.400cm. Find overall magnification?

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2S 2 3 2S 0 400 ts nee

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