A Single Slit $1400 \mathrm {~nm}$ Wide, Forms a Diffraction Pattern When Illuminated by Monochromatic Light

Multiple Choice

A single slit, $1400 \mathrm {~nm}$ wide, forms a diffraction pattern when illuminated by monochromatic light of $490 - n m$ wavelength. What is the largest angle from the central maximum at which the intensity of the light is zero?

A) $35 ^ { \circ }$
B) $44 ^ { \circ }$
C) $32 ^ { \circ }$
D) $38 ^ { \circ }$
E) $41 ^ { \circ }$