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:

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Quantrex Academy · Accepted Answer

Correct answer: C. 2 : 1

qV = 1 2 mv 2 Hence v &#8733; 1 m V H V He = 4 1 = 2 : 1

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:

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