Light (with wavelengths in the range of 400 nm to 700 nm) is incident normally on a…

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

Problem

Light (with wavelengths in the range of 400 nm to 700 nm) is incident normally on a diffraction grating with 400 lines per mm. (a) Show that there are only seven maxima in which all wavelengths are present. (b) What is the largest wavelength present in the fourth order?

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