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MHT CET202410 May 2024Evening ShiftChemistryStructure of AtomActual

What is the frequency of violet light having wavelength 400 nm ?

Options

  1. A3.0 10¹⁴ ~Hz
  2. B4.0 10¹⁴ ~Hz
  3. C7.5 10¹⁴ ~Hz
  4. D9.0 10¹⁴ ~Hz

Correct answer

C. 7.5 10¹⁴ ~Hz

Step-by-step solution

aligned v= c & = 3 10^8 ~ms ⁻¹ 400 10⁻⁹ ~m & =7.5 10¹⁴ ~Hz aligned

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