BCECE Medical BCECE Medical Solved Papers-2014

  • question_answer
    Find the difference of air pressure between the inside and outside of a soap bubble 5 mm in diameter, if the surface tension is 1.6 N/m.

    A)  2560 \[N/{{m}^{2}}\]       

    B)  3720 \[N/{{m}^{2}}\]

    C)  1208 \[N/{{m}^{2}}\]        

    D)  950 \[N/{{m}^{2}}\]

    Correct Answer: A

    Solution :

    \[p=\frac{4T}{R}=\frac{4\times 1.6}{2.5\times {{10}^{-3}}}\] \[=2560\,\,N/{{m}^{2}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner