If the de Broglie wavelength of an electron is equal to times the wavelength of a photon of frequency then the speed of electron is equal to- [JEE Main 11-Jan-2019 Morning] |
(Speed of light |
Plancks constant |
Mass of electron) |
A)
B)
C)
D)
Correct Answer: C
Solution :
[c] The wavelength of photon of frequency v is |
(i) |
The de Broglie wavelength of the electron is |
[Given] |
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