A Plane Wave with a Wavelength of 500 Nm Is $\degree$

Multiple Choice

A plane wave with a wavelength of 500 nm is incident normally on a single slit with a width of 5.0*10^-6 m. Consider waves that reach a point on a far-away screen such that rays from the slit make an angle of 1.0 $\degree$ with the normal. The difference in phase for waves from the top and bottom of the slit is:

A) 0
B) 0.55 rad
C) 1.1 rad
D) 1.6 rad
E) 2.2 rad