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JEE Main2014ChemistryStructure of AtomActual

Excited hydrogen atom emits light in the ultraviolet region at 2.47 10¹⁵ ~Hz . With this frequency, the energy of a single photon is: ( h =6.63 10⁻³⁴ Js )

Options

  1. A8.041 10⁻⁴⁰ ~J
  2. B2.680 10⁻¹⁹ ~J
  3. C1.640 10⁻¹⁸ ~J
  4. D6.111 10⁻¹⁷ ~J

Correct answer

C. 1.640 10⁻¹⁸ ~J

Step-by-step solution

E = hv aligned &=6.63 10⁻³⁴ 2.47 10¹⁵ &=1.640 10⁻¹⁸ ~J aligned

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