Question

Which of the following series in the spectrum of hydrogen atom lies in the visible region of the electromagnetic spectrum?

A. Paschen series
B. Balmer series
C. Lyman series
D. Brackett series

Answer 1

(B) the Balmer series lies in the visible region

f = (1/2^2 - 1/n^2) * 3.289E14 for small (n = 3, 4. 5)