In an electron gun, the electrons are accelerated by a potential V . If e is the charge and m is the mass of an electron, then the maximum velocity of these electrons will be

Question

In an electron gun, the electrons are accelerated by a potential V . If e is the charge and m is the mass of an electron, then the maximum velocity of these electrons will be, 2 eV m, 2 eV m, 2 m eV, V 2 2 em

MARKS App · Accepted Answer

eV = 1 2 mv 2 ⇒ v 2 = 2 eV m ⇒ v = 2 eV m

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