The Balmer series in the hydrogen spectrum corresponds to the transition from 1n = 2 to 2n = 3,4,.......... This series lies in the visible region. Calculate the wave number of line associated with the transition in Balmer series when the electron moves to n = 4 orbit. (R_H = 109677 cm^–1).

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Vishal Baghel | Contributor-Level 10

9 months ago

This is a Short Answer Type Questions as classified in NCERT Exemplar

Ans: We have V = 109677 [1/ni ² - 1/nf² ] cm^-1

Given, n_i = 2, n_f=4

V =109677 [1/4 - 1/16] = 20564.44 cm^-1

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The Balmer series in the hydrogen spectrum corresponds to the transition from 1n = 2 to 2n = 3,4,.......... This series lies in the visible region. Calculate the wave number of line associated with the transition in Balmer series when the electron moves to n = 4 orbit. (RH = 109677 cm–1).