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A telescope using light having wavelengt...

A telescope using light having wavelength 5000 Å and using lenses of focal lengths 2.5 cm and 30 cm. If the diameter of the aperature of the objective is 10 cm, then the resolving limit of telescope is

A

`6.1xx10^(-6)`rad

B

`5.0xx10^(-6)`rad

C

`8.3xx10^(-4)`rad

D

`7.3xx10^(-3)`rad

Text Solution

Verified by Experts

The correct Answer is:
A
(d) Resolving limit of telescope
`(1.22lamda)/a=(1.22xx(500xx10^(-10)))/0.1=6.1xx10^(-6) rad`
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