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NEET2016PhysicsDual Nature of MatterActual

An electron of mass m and a photon have same energy E. The ratio of de-Broglie wavelengths associated with them is: ( c being velocity of light)

Options

  1. A1 c E 2 m 1 2
  2. BE 2 m 1 2
  3. Cc 2 m E 1 2
  4. D1 c 2 m E 1 2

Correct answer

A. 1 c E 2 m 1 2

Step-by-step solution

De-Broglie wavelength is given by λ e = h p = h 2 m . E for electron De-Broglie wavelength of photon is given by λ p = h p = h E c = h c E λ e λ p = 1 2 m E . E c = 1 c E 2 m

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