Questions
Hydrogen ion and singly ionized helium atom are accelerated, from rest, through the same potential difference. The ratio of final speeds of hydrogen and helium ions is close to :
detailed solution
Correct option is B
Gain in Kinetic energy =Loss in potential energy⇒12mv2=qΔV⇒v=2qΔvm⇒v ∝ qm⇒v 1v 2= q1m2q2m1⇒v 1v 2= q 4mqm∴v1v2=21Talk to our academic expert!
Similar Questions
If an electron moves from rest from a point at which potential is 50 volt to another point at which potential is 70 volt, then its kinetic energy in the final state will be
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