Question

Define : frenkel,pfund,brakket,paschan and balmar series.

Answer 1

jHydrogen atom is the simplest atomic system found in nature, thus it produces the simplest of these series. When the beam of light or any radiation is made to enter the device through a slit, each individual component of the light or radiation form images of the source. These images can be visualised when resolved under the spectroscope. The images got will be in the form of parallel lines arranged next to each other with regular spacing. The lines will be apart in higher wavelength side and they come closer gradually when moved from higher to lower wavelength side. The shortest wavelength will possess least spaced spectral lines and it is named as series limit.