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Dispersion and resolving power of the prism and grating spectroscope
Principle: The refractive indices of liquids, crown glass and flint glass are determined as a function of the wavelength by refraction of light through the prism at minimum deviation. The resolving power of the glass prisms is determined from the dispersion curve.
Tasks:
1. To adjust the spectrometer-goniometer.
2. To determine the refractive index of various liquids in a hollow prism.
3. To determine the refractive index of various glass prism.
4. To determine the wavelengths of the mercury spectral lines.
5. To demonstrate the relationship between refractive index and wavelength (dispersion curve).
6. To calculate the resolving power of the glass prisms from the slope of the dispersion curves.
7. Determination of the grating constant of a Rowland grating based on the diffraction angle (up to the third order) of the high intensity spectral lines of mercury.
8. Determination of the angular dispersion of a grating.
9. Determination of the resolving power required to separate the different Hg-Lines. Comparison with theory.
| Artikel-Nr. | Artikelbezeichnung |
|---|---|
| P2210300 | Dispersion and resolving power of the prism and grating spectroscope |
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