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JEE Main & Advanced Physics Fluid Mechanics, Surface Tension & Viscosity / द्रव यांत्रिकी, भूतल तनाव और चिपचिपापन Question Bank Capillarity

  • question_answer
    A shell having a hole of radius r is dipped in water. It holds the water upto a depth of h then the value of r is  [RPMT 2000]

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

    B)                      \[r=\frac{T}{hdg}\]

    C)             \[r=\frac{Tg}{hd}\]

    D)                      None of these

    Correct Answer: A

    Solution :

                    \[\frac{2T}{r}=hdg\Rightarrow r=\frac{2T}{hdg}\]


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