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Two particles A and B having equal charg...

Two particles A and B having equal charges `+6C`, after being accelerated through the same potential differences, enter a region of uniform magnetic field and describe circular paths of radii `2cm` and `3cm` respectively. The ratio of mass of A to that of B is

A

`1//3`

B

`1//2`

C

`4//9`

D

`9//5`

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The correct Answer is:
c
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