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A proton and an electron are associated with same de-Broglie wavelength. The ratio of their kinetic energies is: (Assume h=6.63 10⁻³⁴ ~J ~s , ~m _ e =9.0 10⁻³¹ ~kg and m _ p =1836 times m _ e )

Options

  1. A1: 1836
  2. B1: 1 1836
  3. C1: 1 1836
  4. D1: 1836

Correct answer

D. 1: 1836

Step-by-step solution

is same for both P= h same for both P = 2 mK Hence, aligned & K 1 ~m & KE _ p KE _ e = m _ e m _ p = 1 1836 aligned

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