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The focal lengths of the objective and e...

The focal lengths of the objective and eye lenses of a telescope are respectively 200 cm and 5 cm . The maximum magnifying power of the telescope will be

A

`-40`

B

`-48`

C

`-60`

D

`-100`

Text Solution

Verified by Experts

The correct Answer is:
B
m = `(-f_(o))/(f_(e)) (1 + (f_(e))/(D) ) `
= -`(200)/(5) (1 + (5)/(25) ) = -48 . `
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