In: Physics
Three discrete spectral lines occur at angles of 10.2°, 13.5°, and 14.6°, respectively, in the first-order spectrum of a diffraction grating spectrometer.
(a) If the grating has 3780 slits/cm, what are the wavelengths of the light?
λ1 | = nm (10.2°) |
λ2 | = nm (13.5°) |
λ3 | = nm (14.6°) |
(b) At what angles are these lines found in the second-order
spectra?
θ | = ° (λ1) |
θ | = ° (λ2) |
θ | = ° (λ3) |