How much kinetic energy will be gained by an $\alpha - $particle in going from a point at $70\,V$ to another point at $50\,V$
How much kinetic energy will be gained by an $\alpha - $particle in going from a point at $70\,V$ to another point at $50\,V$
- A
$40\,eV$
- B
$40\,keV$
- C
$40\,MeV$
- D
$0\,eV$
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