The diameter of the objective lens of a telescope is `5.0m` and wavelength of light is `6000 Å`. The limit of resolution of this telescope will be

Options

A. `0.03 sec`
B. `3.03 sec`
C. `0.06 sec`
D. `0.15 sec`

Answer

A

Explanation

Limit of resolution `=(1.22lambda)/(a)xx(180)/(pi)`(in degree)
`=((1.22xx(6000xx10^(-10)))/(5)xx(180)/(pi))^(@)=0.03 sec`