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The de-Broglie wavelength of an electron is the same as that of a 50 KeV X-ray photon.

The de-Broglie wavelength of an electron is the same as that of a 50 KeV X-ray photon. The ratio of the energy of the photon to the kinetic energy of the electron is (the energy equivalent of electron mass of 0.5 MeV)

Options

(a) (1:50)
(b) (1:20)
(c) (20:1)
(d) (50:1)

Correct Answer:

(20:1)

Explanation:

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