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Surface tension of water is 0.072 Nm^(-1...

Surface tension of water is 0.072 `Nm^(-1)`. The excess pressure inside a water drop of diameter 1.2 mm is :-

A

240 Pa

B

120 Pa

C

0.06 Pa

D

60 Pa

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Surface tension of water is 0.072 N m^(-1) . The excess pressure inside a water drop of diameter 1.2 mm is

    A
    `240 Nm^(-2)`
    B
    `120 Nm^(-2)`
    C
    `60 Nm^(-2)`
    D
    `72 Nm^(-2)`

  • Surface tension of mercury is 0.465 N m^(-1) . The excess pressure inside a mercury drop of diameter 6mm is

    A
    310 pa
    B
    410 pa
    C
    510 pa
    D
    610 pa

  • A spherical drop of water has 2.5 mm radius. If the surface tension of water is 70 xx 10^(-3) N m^(-1) , then the excess pressure inside the drop is

    A
    70 N `m^(-2)`
    B
    56 N `m^(-2)`
    C
    35 N `m^(-2)`
    D
    48 N `m^(-2)`

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