Editor
Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be:
Difficulty: Easy
A: 
$6\times 10^{-5} rad$
B: 
$7\times 10^{-5} rad$
C: 
$8\times 10^{-5} rad$
D: 
None