$A$ particle $A$ has a charge of $+q$ and a particle $B$ has a charge of $+9q$. Both particles have the same mass $m$. If both particles are released from rest through the same potential difference,the ratio of their speeds will be .......
- A$1 : 2$
- B$1 : 3$
- C$1 : 2\sqrt{2}$
- DNone of these
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