Question

An electron (of mass m) and a photon have the same energy E in the range of a few eV. The ratio of the de-Broglie wavelength associated with the electron and the wavelength of the photon is (c = speed of light in vacuum)

A
B
C
D
Hard
Solution
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Correct option is A)

For electronDe - Broglie wavelength where p is momentum also by energy we have For photon energy option (A) is correct.

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