RAJASTHAN PMT Rajasthan - PMT Solved Paper-2003

  • question_answer
    Excess pressure in a soap bubble of radius r is proportional to

    A)  \[\frac{1}{r}\]                                  

    B)  \[\frac{1}{{{r}^{2}}}\]

    C)  \[r\]                     

    D)         \[{{r}^{2}}\]

    Correct Answer: A

    Solution :

    Excess pressure inside a soap bubble \[P=\frac{4T}{r}\propto \frac{1}{r}\]


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