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The surface tension of a soap solution i...

The surface tension of a soap solution is `30 xx 10^(-3) N m^(-1)`. How much work is done to increase the radius of a soap bubble from 2 cm to 3 cm?

Text Solution

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`3.77 xx 10^(-4)` J
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Knowledge Check

  • The work done in increasing the radius of a soap bubble from R to 3 R is

    A
    `12 pi R^(2)T`
    B
    `64 pi R^(2)T`
    C
    `8 pi R^(2)T`
    D
    `16 piR^(2)T`

  • The surface tension of a soap solution is 0.05 Nm^(-1) How much work is done to produce a soap bubble of radius 0.03 m?

    A
    `1.8xx10^(-2)J`
    B
    `2.1xx10^(-3)J`
    C
    `1.5xx10^(-2)J`
    D
    `1.1xx10^(-3)J`

  • The surface tension of soap solution is 0.030 N/m . What is the energy needed to increase the radius of a soap bubble from 4 cm to 6 cm ?

    A
    `1.5 xx10^(3)`J
    B
    `1.5 xx10^(-2)`J
    C
    `3xx10^(-2)`J
    D
    `1.5 xx10^(-4)`J

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