A) The size of the cathode ray tube
B) The variation of ?g?
C) Velocity
D) Size of the electron
Correct Answer: C
Solution :
Mass is basically a constant term for any physical application at low velocity. But in accordance with Einstein?s theory of relativity, at higher speeds the mass of the particle change according to formula \[m=\frac{{{m}_{0}}}{\sqrt{1-({{v}^{2}}/{{c}^{2}})}}\]
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