Question

A laser operating at 3 x 10¹⁴ Hz passes
through an aperture of 10^-2m. The angular
spread in radians is:
(A) 10^-2
(C) 10^-6
(B) 10^-4
(D) 10^-8​

Answer 1

Explanation:

laser operates at a frequency of 3×10

14

H

z

and has an aperture of 1cm. The radii spread of the beam is