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Olympiad workbook
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NSEP
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Atomic Physics

Olympiad workbook · NSEP · Atomic Physics

An electron in hydrogen atom jumps from a level n=4 to n=1 . The...

An electron in hydrogen atom jumps from a level n=4n=4 to n=1n=1. The momentum of the recoiled atom is

Options

  1. A6.8×10−27 kg−m/s6.8 \times 10^{-27} \mathrm{~kg}-\mathrm{m} / \mathrm{s}
  2. B12.75×10−19 kg−m/s12.75 \times 10^{-19} \mathrm{~kg}-\mathrm{m} / \mathrm{s}
  3. C13.6×10−19 kg−m/s13.6 \times 10^{-19} \mathrm{~kg}-\mathrm{m} / \mathrm{s}
  4. Dzero.

Correct answer

A. 6.8×10−27 kg−m/s6.8 \times 10^{-27} \mathrm{~kg}-\mathrm{m} / \mathrm{s}

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