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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2000

  • question_answer
    A shell having a hole of radius r is dipped in water. It holds the water upto a depth h, then the value of r is:

    A)  \[r=\frac{T}{2hdg}\]                      

    B)  \[r=\frac{\sqrt{2}T}{hdg}\]

    C)  \[r=\frac{T}{hdg}\]        

    D)         \[r=\frac{2T}{hdg}\]

    Correct Answer: D

    Solution :

    For water, surface tension\[T=\frac{rhdg}{2}\] \[r=\frac{2T}{hdg}\]


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