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NEET Sample Paper NEET Sample Test Paper-26

  • question_answer
    A liquid film is formed over a frame ABCD as shown in figure. Wire CD (massless) can slide without friction. The mass to be hung from CD to keep it in equilibrium is (surface tension of liquid is T).

    A)  \[T/g\]                         

    B)  \[2Tl/g\]

    C)  \[g/2Tl\]                      

    D)  \[TXl\]

    Correct Answer: B

    Solution :

    From the diagram, clearly \[Mg=2Tl\] It is the equilibrium condition. \[\therefore \]  \[M=\left( \frac{2Tl}{g} \right)\]


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