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Two convex le...

Question

Two convex lenses of focal length $0.3 m$ and $0.05 m$ are used to make a telescope. The distance kept between them is equal to

A

0.35 m

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B

0.25 m

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C

0.175 m

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D

0.15 m

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Solution

The correct option is A $0.35 m$
To make a Telescope,
$L = f_{0} + f_{e}$
$= 0.3 + 0.05$
$= 0.35 m$

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