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Excess pressure inside a drop of water o...

Excess pressure inside a drop of water of radius 2mm is `70 N//m^2`. The same in a drop of radius 4mm will be (`T_(water) = 70 xx 10^-3 N//m`)

A

`55 N//m^2`

B

`35 N//m^2`

C

`45 N//m^2`

D

`25 N//m^2`

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The correct Answer is:
B
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