JEE PHYSICS MCQ: RAY OPTICS

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Assertion : the focal length of objective lens in telescope is much more than that of eye piece.

Reason : Telescope has high resolving power due to large focal length.

View answer and explanation

Correct option: B

If both assertion & reason are true but reason is not a correct explanation of the Assertion

Option B is correct because both the assertion and reason are true, but the reason (high resolving power due to large focal length) is not the direct explanation for why the objective lens has a much larger focal length than the eyepiece.

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