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JEE Main 2012Offline
Exam
JEE Main
Year
2012
Mode
Offline
Subject
Physics
Chapter
Atomic Physics

JEE Main 2012 · Offline · Physics · Atomic Physics

Hydrogen atom is excited from ground state to another state with...

Hydrogen atom is excited from ground state to another state with principal quantum number equal to 44. Then the number of spectral lines in the emission spectra will be

Options

  1. A22
  2. B33
  3. C55
  4. D66

Correct answer

D. 66

Step-by-step solution

Number of spectral lines from a state n\mathrm{n} to ground state is =n(n−1)2=6.=\frac{n(n-1)}{2}=6.
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