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JEE Main & Advanced Physics Fluid Mechanics, Surface Tension & Viscosity / द्रव यांत्रिकी, भूतल तनाव और चिपचिपापन Question Bank Mock Test - Mechanical Properties of Fluids

  • question_answer
    A metallic block weighs 15 N in air. It weighs 12 N when immersed in water and 13 N when immersed in another liquid. What is the specific gravity of the liquid?

    A) 1/3                   

    B) 2/3

    C) 12/13  

    D) 13/15

    Correct Answer: B

    Solution :

    [b] \[\frac{\sigma }{{{\rho }_{W}}}=\frac{15}{15-12},\frac{\sigma }{{{\rho }_{l}}}=\frac{15}{15-13}\] \[\Rightarrow \frac{{{\rho }_{l}}}{{{\rho }_{W}}}=\frac{2}{3}\]


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