First slide

The optical instruments

Question

The magnifying power of a telescope can be increased by

Moderate

A

Increasing focal length of the system
B

Fitting eye piece of high power
C

Fitting eye piece of low power
D

Increasing the distance of objects

Solution

$Magnifying power of telescope is \frac{f_{o}}{f_{e}}, so as \frac{1}{f_{e}} increases, magnifying power increases$

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