J & K CET Engineering J and K - CET Engineering Solved Paper-2011

  • question_answer
    If R is the radius of a soap bubble and S its surface tension, then the excess pressure inside is

    A)  \[\frac{2S}{R}\]

    B)  \[\frac{3S}{R}\]

    C)  \[\frac{4S}{R}\]

    D)  \[\frac{S}{R}\]

    Correct Answer: C

    Solution :

    If R is the radius of a soap bubble and S its surface tension then the excess pressure inside Is \[\frac{4S}{R}\].


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