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An oil drop of 10 excess electron is hel...

An oil drop of 10 excess electron is held stationary under a consatnt electric field of `3.6xx10^(4)NC^(-1)` in Millikan's oil drop experiment. The density of oil is `1.26gcm^(-3)`. Radius of the oil drop is
(Take, `g=9.8ms^(-2), e=1.6xx10^(-19)C`)

A

`1.0 xx 10^(-6) m`

B

`4.8 xx 10^(-5)m`

C

`4.8 xx 10^(-18) m`

D

`1.13 xx 10^(-18) m`

Text Solution

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The correct Answer is:
A
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