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MHT CET20255 May 2025Evening ShiftChemistryStructure of AtomActual

Calculate the frequency in H _ z of orange colour light having wave length 600 ~nm . [ C =3 10^8 ~ms ⁻¹ ]

Options

  1. A5.4 10¹⁴ H _z
  2. B5.0 10¹⁴ H _z
  3. C5.8 10¹⁴ H _z
  4. D6.2 10¹⁴ H _z

Correct answer

B. 5.0 10¹⁴ H _z

Step-by-step solution

The frequency of light is determined from the relationship c = , where c = 3 10⁸ m/s and = 600 nm . Convert the wavelength to meters: = 600 10⁻⁹ m = 6 10⁻⁷ m . Rearranging the equation gives = c = 3 10⁸ 6 10⁻⁷ = 1 2 10¹⁵ = 5 10¹⁴ Hz . This result corresponds to option B .

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