Question

The wave number of h alpha -line in Balmer series of hydrogen spectrum is

Answer 1

Explanation:

H- alpha (Ha) is a specific deep - red visible spectrum line in the balmer series with the wavelength of 656.28 nm; it occurs when a hydrogen electron fall from its third to second lowest energy level. For Ha - line in balmer series of the hydrogen spectrum v- is given by v- = r [ 221- 321] = 365 R , where R is Rydberg constant.

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