Informace o publikaci

Linear halogen bulb as a powerful light source for physics experiments



Druh Článek v odborném periodiku
Časopis / Zdroj European Journal of Physics
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Obor Optika, masery a lasery
Klíčová slova optics; demonstration experiments; spectrum
Popis The paper describes the usage of a conventional lamp equipped with a linear halogen bulb for physics experiments. The irradiance gain and limitation of spectral resolution are treated in detail theoretically and verified experimentally. The analysis shows that, in comparison with a standard bulb and slit arrangement, the linear bulb can increase irradiance of the spectrum image in an order of magnitude without a significant loss of a spectral resolution in comparable experimental arrangements. Some concrete examples of experiments with a white light spectrum and diffraction are presented.