In famous Millikan's oil-drop method for determining the charge on an electron, the experimental measurements show that the oil-drops gain whole or integral number of charges, because.
A
The charges are multiples of the smallest charge
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B
The oil-drop is never stationary
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C
The oil-drop falls with a terminal velocity
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D
The oil drops are circular
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Solution
The correct option is A The charges are multiples of the smallest charge In famous Millikan's oil-drop method, charges are multiples of smallest charge which show that oil-drops gain whole or integral no. of charges.