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KVPY2010ChemistryStructure of Atom

The energy of a photon of wavelength k =1 meter is (Planck's constant =6.625 10⁻³⁴ Js , speed of light = .3 10⁸ ~m / s )

Options

  1. A1.988 10⁻²³ ~J
  2. B1.988 10⁻²⁸ ~J
  3. C1.988 10⁻³⁰ ~J
  4. D1.988 10⁻²⁵ ~J

Correct answer

A. 1.988 10⁻²³ ~J

Step-by-step solution

array l E= h c = 6.02 10⁻³⁴ 3 10⁸ 1 E=1.988 10⁻²³ ~J array

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