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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 block of steel of size 5 cm × 5 cm × 5 cm is weighed in water. If the relative density of steel is 7, its apparent weight is                                                                                          [AFMC 1997]

    A)            6 × 5 × 5 × 5 gf                     

    B)            4 × 4 × 4 × 7 gf

    C)            5 × 5 × 5 × 7 gf                     

    D)            4 × 4 × 4 × 6 gf

    Correct Answer: A

    Solution :

                       Apparent weight = \[V(\rho -\sigma )g\]            = \[5\times 5\times 5(7-1)g\]= \[6\times 5\times 5\times 5\ gf\]


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