A certain helium-neon laser emits red light in a narrow
Chapter 33, Problem 1(choose chapter or problem)
A certain helium-neon laser emits red light in a narrow band of wavelengths centered at 632.8 nm and with a "wavelength width" (such as on the scale of Fig. 33-1) of 0.0100 nm. What is the corresponding "frequency width" for the emission?
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