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Q. |
The mass of an electron in motion depends upon - |
A. | Direction of motion |
B. | B its velocity |
C. | C its velocity of e- |
D. | D it’s shell number |
Answer» B. B its velocity | |
Explanation: The electron has a mass that is approximately 1/1836 that of the proton. Quantum mechanical properties of the electron include an intrinsic angular momentum (spin) of a half-integer value, expressed in units of the reduced Planck constant, ħ. |
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