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From the following, what charges can be ...

From the following, what charges can be present on oil drops in Millikan's experiment

A

Zero, equal to the magnitude of charge on a particle

B

`2e,1.6xx10^(-18)C`

C

`1.6xx10^(-19)C,2.5e`

D

`1.5e,e` (Here e is the electronic charge)

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The correct Answer is:
B
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