Q)
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37. Two identical balls having like charges and placed at a
certain distance apart repel each other with a certain force.
They are brought in contact and then moved apart to a
distance equal to half their initial separation. The force of
repulsion between them increases 4.5 times in comparison
with the initial value. The ratio of the initial charges of the
balls is
(a) 2
(b) 3
(c) 4
(d) 6
1 Answer
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