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The angular resolution of a 10cm diamete...

The angular resolution of a `10cm` diameter telescope at a wavelength `5000Å` is of the order

A

`10^6` rad

B

`10^(-2)` rad

C

`10^4` rad

D

`10^(-4)` rad

Text Solution

Verified by Experts

The correct Answer is:
D
Angular resolution `d theta = (1.22 lambda)/(a)`
`d theta = (1.22 xx 5000 xx 10^(-10))/(10 xx 10^(-2))`
`d theta = 6.1 xx 10^(-6) rad`
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