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Log1989 problem number 21.20
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Uploaded: 30.10.2022
Content: L21_20_idz-student_.pdf 32,36 kB
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The beam of light normally falls on the diffraction grating. The diffraction angle for the line, whose wavelength is 589 nm, in the first-order spectrum is 17 degrees 18 minutes. The angle of diffraction of some line in the second-order spectrum is 24 degrees 12 minutes. Find the wavelength of this line and the number of strokes per 1 mm of the lattice.
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