JEE PHYSICS MCQ: RAY OPTICS

1 Medium

1 of 1

Understanding +4 | -1

To increase the magnifying power of telescope

({f_0} =

focal length of the objective and

{f_e} =

focal length of the eye lens)

View answer and explanation

Correct option: A

{f_0}

should be large and

{f_e}

should be small

Option A (

{f_0}

should be large and

{f_e}

should be small) is correct because the magnifying power of a telescope is directly proportional to the focal length of the objective lens and inversely proportional to the focal length of the eyepiece.

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