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

  • question_answer
    Equal masses of water and a liquid of density 2 are mixed together, then the mixture has a density of

    A)            2/3

    B)            4/3

    C)            3/2

    D)            3

    Correct Answer: B

    Solution :

                       If two liquid of equal masses and different densities are mixed together then density of mixture            \[\rho =\frac{2{{\rho }_{1}}{{\rho }_{2}}}{{{\rho }_{1}}+{{\rho }_{2}}}=\frac{2\times 1\times 2}{1+2}=\frac{4}{3}\]


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