The mass of the electron varies with - Vidyadip

MCQ

The mass of the electron varies with

A
The size of the cathode ray tube
B
The variation of ' $g$ '
✓
Velocity
D
Size of the electron

✓

Answer

Correct option: C.

Velocity

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$m=\frac{m_0}{\sqrt{1-\left(v^2 / c^2\right)}}$

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