The Second Angular Minima Location for a Single-Slit Diffraction Having $1.5 \mu \mathrm { m }$

Multiple Choice

The second angular minima location for a single-slit diffraction having slit width of $1.5 \mu \mathrm { m }$ and wavelength of 500 nm is

A) 13º.
B) 42º.
C) 25º.
D) 36º.