A diffraction grating having 180 lines/mm is illuminated by light having 2 wavelengths 400 and 500 nm. Light falls perpendicular to the diffraction grating. Calculate the difference in the angle formed at the second light for the two wavelengths, and find the smallest angle formed when the bands of light for the two wavelengths overlap. coincide!
A diffraction grating having 180 lines/mm is illuminated by light having 2 wavelengths 400 and 500 nm. Light falls perpendicular to the diffraction grating. Calculate the difference in the angle formed at the second light for the two wavelengths, and find the smallest angle formed when the bands of light for the two wavelengths overlap. coincide!
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A diffraction grating having 180 lines/mm is illuminated by light having 2 wavelengths 400 and 500 nm. Light falls perpendicular to the diffraction grating. Calculate the difference in the angle formed at the second light for the two wavelengths, and find the smallest angle formed when the bands of light for the two wavelengths overlap.
coincide!
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