From the following, what charges can be present on oil drops in Millikan's experiment
(Here e is the electronic charge)
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
$1.5e,\;e$
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- [AIIMS 2000]
The ratio of momenta of an electron and an $\alpha - $particle which are accelerated from rest by a potential difference of $100 V$ is
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