A compound microscope has a magnification of 30. The focal length of e – McqOptions

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1.	A compound microscope has a magnification of 30. The focal length of eye piece is 5 cm. If the final image is formed at the least distance of distinct vision (25 cm) the magnification produced by the objective is
A.	5
B.	7.5
C.	10
D.	None of these
Answer» B. 7.5

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