A diffraction grating has 150 lines per mm

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

Problem

A diffraction grating has 150 lines per mm. Light consisting of two wavelengths, 400 nm and 500 nm, is incident normally on a diffraction grating. What is the smallest angle for which maxima of the two wavelengths coincide?

Related theory

Browse the problem library