Ultraviolet light of wavelength is incident on a grating that has lines per millimeter

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics

Problem

Ultraviolet light of wavelength

400\,\text{nm}

is incident on a grating that has

1000

lines per millimeter. What is the largest integer value of the order number

m

for which a bright maximum can be observed? (a)

m=4

(b)

m=2

(c)

m=1

(d)

m=3