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JEE Main & Advanced Physics Fluid Mechanics, Surface Tension & Viscosity / द्रव यांत्रिकी, भूतल तनाव और चिपचिपापन Question Bank Pascal's Law and Archimedes Principle

  • question_answer
    A wooden cylinder floats vertically in water with half of its length immersed. The density of wood is

    A)            Equal of that of water                                                          

    B)            Half the density of water

    C)            Double the density of water                                             

    D)            The question is incomplete

    Correct Answer: B

    Solution :

               \[V\rho g=\frac{V}{2}\sigma g\]\ \[\rho =\frac{\sigma }{2}\] (s = density of water)


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