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JEE PHYSICS MCQ: RAY OPTICS

1 Medium

1 of 1

Application +4 | -1

An opera glass (Gallilean telescope) measures

9\,\,cm

from the objective to the eyepiece. The focal length of the objective is

15\,\,cm

. Its magnifying power is

View answer and explanation

Correct option: A

\mathrm{2}\mathrm{.5}

Option A (

\mathrm{2}\mathrm{.5}

) is correct because the magnifying power is 2.5, calculated using the ratio of the objective focal length to the eyepiece focal length.

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