NDA 2017 Physics question

Physics Ray Optics and Optical Instruments NDA 2017

Which one of the following statements is correct about the magnification of an optical microscope ?

(A)Magnification increases with the increase in focal length of eyepiece
(B)Magnification increases with the increase in focal length of objective
(C)Magnification does not depend upon the focal length of eyepiece
(D)Magnification decreases with the increase in focal length of eyepieceCorrect

Answer: (D)

Solution

The magnifying power of a compound microscope is approximately , where and are the focal lengths of the objective and the

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Question ID VK-030729