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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Ray Optics

Olympiad workbook · NSEP · Ray Optics

In a compound microscope, having tube-length 30 cm , the power of...

In a compound microscope, having tube-length 30 cm , the power of the objective and the eye-piece are 100 D and 10 D respectively. Then the magnification produced by the microscope when the final image is at the least distance of distinct vision ( 25 cm ) will be

Options

A $55$
B $64$
C $77$
D $90$

Correct answer

C. $77$

Step-by-step solution

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