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NEETChemistryStructure of Atom

Lifetimes of the molecules in the excited states are often measured by using pulsed radiation source of duration nearly in the nano second range. If the radiation source has the duration of 2 ns and the number of photons emitted during the pulse source is 2.5 × 10 15 , what is the energy of the source?

Options

  1. A8.28 × 10 –10 J
  2. B9.65 × 10 –10 J
  3. C10.52× 10 –10 J
  4. D11.24× 10 –10 J

Correct answer

B. 9.65 × 10 –10 J

Step-by-step solution

Correct Option is : (B) 9.65 × 10 –10 J

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