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light of wavelength 500 nm is incident
light of wavelength 400 nm is incident
light of wavelength 600 nm is incident
light of wavelength 580 nm is incident
light of wavelength 500 nm
wavelength of incident light
a light beam of wavelength 500 nm
light of wavelength 600 nm
light with wavelength of 700 nm
when a light of wavelength 400 nm
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