Light falls normally on a transparent diffraction grating of width l 6 5 cm with 200 lines per millimeter The spectrum under investigation includes a spectral line with 670 8 nm consisting of two components differing by 0 015 rim Find (a) In what order of the spectrum these components will be resolved (b) The least difference of wavelengths that can be resolved by this grating in a wavelength region 670 nm

Question: Light falls normally on a transparent diffraction grating of width l = 6.5 cm with 200 lines per millimeter. The spectrum under investigation includes a

Light falls normally on a transparent diffraction grating of width l = 6.5 cm with 200 lines per millimeter. The spectrum under investigation includes a spectral line with λ = 670.8 nm consisting of two components differing by δλ = 0.015 rim. Find:
(a) In what order of the spectrum these components will be resolved;
(b) The least difference of wavelengths that can be resolved by this grating in a wavelength region λ = 670 nm.

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