Consider a diffraction grating with a grating constant of 500 lines/mm. The grating is illuminated with a monochromatic

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answerhappygod
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Consider a diffraction grating with a grating constant of 500 lines/mm. The grating is illuminated with a monochromatic

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Consider a diffraction grating with a grating constant of
500 lines/mm. The grating is illuminated with a monochromatic light
source of unknown wavelength. A screen is placed a distance 1 m
away and the 1st order maxima is measured to be a distance 39 cm
from the central maxima. What is the wavelength of the light
expressed in nm?
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