2. Solved Papers
  3. CEE Kerala Engineering

CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2004

  • question_answer
    A soap bubble in air (two surfaces) has surface tension\[0.03\text{ }N{{m}^{-1}}\]. Find the gauge pressure inside a bubble of diameter 30 mm.

    A)  2 Pa                      

    B)         4 Pa                      

    C)  16 Pa                   

    D)         10 Pa

    E)  8 Pa

    Correct Answer: E

    Solution :

    Gauge pressure \[=\frac{4T}{R}=\frac{4\times 0.03}{\frac{30}{2}\times {{10}^{-3}}}=8\,Pa\]


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