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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Ray Optics

Olympiad workbook · NSEP · Ray Optics

The optical powers of the objective and the eyepiece of a compound...

The optical powers of the objective and the eyepiece of a compound microscope are 100 D and 20 D respectively. The microscope magnification being equal to 50 when the final image is formed at

\mathrm{d}=25 \mathrm{~cm}

i.e., the least distance of distinct vision. If the separation between the objective and the eyepiece is increased by 2 cm , the magnification of the microscope will be

Options

A $62$
B $50$
C $38$
D $25$

Correct answer

A. $62$

Step-by-step solution

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