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An opera glass (Galilean telescope ) mea...

An opera glass `(`Galilean telescope ) measures `9cm` from the objective to the eyepiece. The focal length of the objective is `15 cm`. Its magnifying power is

A

2.5

B

43953

C

43895

D

0.4

Text Solution

Verified by Experts

The correct Answer is:
A
`L=f_(0)-f_(e)` and `m=f_(0)/f_(e)`
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