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BITSAT 2010
Exam
BITSAT
Year
2010
Subject
Physics
Chapter
Atomic Physics

BITSAT 2010 · Physics · Atomic Physics

Hydrogen atom in ground state is excited by a monochromatic...

Hydrogen atom in ground state is excited by a monochromatic radiation of λ=975A˚\lambda=975 \AA. Number of spectral lines in the resulting spectrum emitted will be

Options

  1. A3
  2. B2
  3. C6
  4. D10

Correct answer

C. 6

Step-by-step solution

Number of spectral lines =n(n−1)2=6=\frac{\mathrm{n}(\mathrm{n}-1)}{2}=6
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