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JEE Main2011ChemistryStructure of AtomActual

A gas absorbs a photon of 355 ~nm and emits at two wavelengths. If one of the emissions is at 680 ~nm , the other is at:

Options

  1. A325 ~nm
  2. B743 ~nm
  3. C518 ~nm
  4. D1035 ~nm

Correct answer

B. 743 ~nm

Step-by-step solution

1 _ absorted = 1 ₁ + 1 ₂ 1 355 = 1 680 + 1 ₂ ₂=742.8 743 ~nm

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