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Highly selective Backlog Qs for JEE MainChemistryStructure of Atom

1 mole of photon, each of frequency 2500 ~S ⁻¹ , would have approximately a total energy of:

Options

  1. A1 erg
  2. B1 Joule
  3. C1 eV
  4. D1 MeV

Correct answer

A. 1 erg

Step-by-step solution

Total Energy = Nhv =6.022 10²³ 6.626 10⁻³⁴ ~J . S . 2500 ~s ⁻¹=9.9 erg 10 erg In (A) option, it should be 10 erg instead of 1 erg .

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