Question: Light from an argon laser strikes a diffraction grating that has 4,131 lines per cm. The first-order principal maxima are separated by 0.5 m on
Light from an argon laser strikes a diffraction grating that has 4,131 lines per cm. The first-order principal maxima are separated by 0.5 m on a wall 1.69 m from the grating. What is the wavelength of the laser light in nm? Enter an integer.
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