In Millikan's oil drop experiment, which | vedclass

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(B) Millikan's oil drop experiment demonstrated that electric charge is quantized.
This means that the total charge $q$ on any object is always a

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$2e, 1.6 	imes 10^{-19} \, C$

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(B) Millikan's oil drop experiment demonstrated that electric charge is quantized.
This means that the total charge $q$ on any object is always an integer multiple of the elementary charge $e$ (where $e \approx 1.6 	imes 10^{-19} \, C$).
Mathematically, $q = n \cdot e$, where $n$ is an integer $(n = 1, 2, 3, \dots)$.
Looking at the options, $1.6 	imes 10^{-19} \, C$ corresponds to $n=1$ $(1e)$ and $2e$ corresponds to $n=2$.
Since $2.5e$ and $1.5e$ are not integer multiples of $e$, they cannot exist on the oil drop.
Therefore, the set of charges $2e$ and $1.6 	imes 10^{-19} \, C$ (which is $1e$) are valid values.

In Millikan's oil drop experiment, which of the following charges can be present on the oil drop?

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