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

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

A

Zero, equal to the magnitude of charge on α−\alpha -particle

B

2e, 6mu1.6×10−18C,2e,\mspace{6mu} 1.6 \times 10^{- 18}C,

C

1.6×10−19C, 6mu2.5e1.6 \times 10^{- 19}C,\mspace{6mu} 2.5e

D

1.5e, 6mue1.5e,\mspace{6mu} e

(Here e is the electronic charge)

Answer

2e, 6mu1.6×10−18C,2e,\mspace{6mu} 1.6 \times 10^{- 18}C,

Explanation

Solution

In Millikan’s experiment, the charges present on the oil drops are the integral multiples, so 2e and 10e(1.6×10−18C)10e(1.6 \times 10^{- 18}C) charges are present.