The wavelength of first line of Balmer series is 6563Å. The wavelength of first line

The wavelength of first line of Balmer series is 6563Å. The wavelength of first line of Lyman series will be

Options

(a) 1215.4Å
(b) 2500Å
(c) 7500Å
(d) 600Å

Correct Answer:

1215.4Å

Explanation:

λ(ʟyman) / λ(вalmer) = [(1/2²) – (1/3²)] / [(1/1²) – (1/2)²] = 5 / 27

λ(ʟyman) = (5 / 27) × λ(вalmer) = (5 / 27) × 6563 = 1215.4 Å

admin:

Related Questions

  1. A coin of mass m and radius r having moment of inertia I about the axis passes
  2. The input signal given to a CE amplifier having a voltage gain of 150 is
  3. The density of ice is 0.9 g/cc and that of sea water is 1.1 g/cc
  4. If in a nuclear fusion process, the masses of the fusing nuclei be m₁ and m₂
  5. The barrier potential of a p-n junction depends on