1.

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)

Answer»

`55 N//m^2`
`35 N//m^2`
`45 N//m^2`
`25 N//m^2`

Answer :B


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