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A square plate of side 15 cm. is floatin...

A square plate of side 15 cm. is floating on the surface of water. It the surface tension of water is 60 dyne/cm., the excess force applied to separate this plate from water will be

A

600 dyne

B

1600 dyne

C

3600 dyne

D

360 dyne

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • A circular frame made of 20 cm long thin wire is floating on the surface of water. If the surface tension of water is 70 dyne/cm. the required excess force to separate this frame from water will be :

    A
    2800 dyne
    B
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    C
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    D
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  • A ring of radius 0.75 cm is floating on the surface of water . If surface tension of water is 0.07 N/m the force required to lift the ring from the surface of water will be

    A
    `66xx 10^(-1)` N
    B
    ` 66 xx 10^(-2)`N
    C
    `1.05 xx 10^(-3)` N
    D
    `66 xx 10^(-4)` N

  • A ring of radius 0.75 cm is floating on the surface of water . If surface tension of water is 0.07N//m , then the force required to lift the ring from the surface of water will be

    A
    `66xx10^(-1)` N
    B
    `66xx10^(-2)` N
    C
    `66xx10^(-3)` N
    D
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