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A soap bubble is blown to a diameter of ...

A soap bubble is blown to a diameter of 7 cm. if 36960 ergs of work is done in blowing if further find the new radius, if surface tension of the soap solution is 40 dynes/cm.

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Knowledge Check

  • The work done in blowing a soap bubble of 10 cm radius is (Surface tension of the soap solution is 3/100 N/m)

    A
    `75.36xx10^(-4) ` joule
    B
    `37.68xx10^(-4) ` joule
    C
    `150.72xx10^(-4)` joule
    D
    75.36 joule

  • The work done in blowing a soap bubble of radius 0.2 m is (the surface tension of soap solution being 0.06 N/m )

    A
    `192 pi xx10^(-4) J`
    B
    `280pixx10^(-4) j`
    C
    `200 pixx10^(-3)` j
    D
    None of these

  • What will be the work done in blowing a soap bubble of radius 2 cm , the surface tension of the soap solution is 20 dyne/cm at constant temperature ?

    A
    `320 pi ` erg
    B
    ` 640 pi ` erg
    C
    `1240 pi ` erg
    D
    `160 pi ` erg

    • Similar Questions

    Explore conceptually related problems

    The diameter of a soap bubble is 3.5 cm. In blowing it further, if 36960 ergs of work is done then calculate the approximate value of final radius of the soap bubble in cm if surface tension of soap solution is 40 dynes/cm.

    Calculate the work done in blowing a soap bubble from a radius of 2cm "to" 3cm. The surface tension of the soap solution is 30" ""dyne"" "cm^(-2).

    A soap bubble is blown from a radius of 1 cm to 2 cm. Calculate the work done in doing so, if the surface tension of the soap solution is 42 dyne/cm.

    What will be the work done in blowing out a soap bubble of radius 0.4 cm? The surface tension of soap solution is 30 xx 10^(-3)" N/m".

    The work done in blowing a soap bubble from a radius of 6 cm to 9 cm if surface tension of soap solution is 25xx10^(-3) N//m , is

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