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MHT CET20228 Aug 2022Morning 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 increased to 2 times.
  2. BWavelength is decreased to 2 times.
  3. CWavelength is decreased to 1 2 times.
  4. DWavelength is increased to 1 2 times.

Correct answer

C. Wavelength is decreased to 1 2 times.

Step-by-step solution

De Broglie wavelength, = h 2 m q V 1 V If the potential difference V is doubled, the de Broglie wavelength is decreased to 1 2 times.

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