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CMC Medical CMC-Medical VELLORE Solved Paper-2011

  • question_answer
    A wire of length 10 cm is placed horizontal on the surface of water and is gently pulled up with a force of \[1.8\times {{10}^{-2}}N\]to keep the wire in equilibrium. The surface tension of water will be

    A)  0.99 N/m           

    B)  0.09 N/m

    C)  0.59 m                                 

    D)  59 N/m

    E)  None of these

    Correct Answer: B

    Solution :

                                    \[T=\frac{F}{2l}\] \[=\frac{1.8\times {{10}^{-2}}}{2\times 10\times {{10}^{-2}}}\] \[=0.09\,N\text{/}m\]


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