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11.Dual Nature of Radiation and matter
easy
From the following, what charges can be present on oil drops in Millikan's experiment
(Here e is the electronic charge)
A
Zero, equal to the magnitude of charge on $\alpha - $ particle
B
$2e,\;1.6 \times {10^{ - 18}}C,$
C
$1.6 \times {10^{ - 19}}C,\;2.5e$
D
$1.5e,\;e$
Solution
(b) In Millikan’s experiment, the charges present on the oil drops are the integral multiples, so $2e$ and $10e(1.6 \times {10^{ – 18}}C)$ charges are present.
Standard 12
Physics
