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MHT CET202013 Oct 2020Evening ShiftPhysicsDual Nature of MatterActual

If the potential difference used to accelerate electrons is doubled, by what factor does the de-Broglie wavelength associated with the electrons change?

Options

  1. AWavelength is decreased to 1 3 times.
  2. BWavelength is increased to 1 2 times.
  3. CWavelength is increased to 1 2 times.
  4. DWavelength is decreased to 1 2 times.

Correct answer

D. Wavelength is decreased to 1 2 times.

Step-by-step solution

The de Broglie wavelength is given by ( in nm )= 1.23 V Hence it becomes 1 2 times

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