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8th Class Science Force and Pressure Question Bank Force and Pressure

  • question_answer
    Three identical vessels A, B and C contain same quantity of liquid. In each vessel, blocks with different densities but same masses are placed as shown in figure. If \[{{F}_{A}},{{F}_{B}}\] and \[{{F}_{C}}\] are the total forces acting on the base of vessels A, B and C respectively, then

    A) \[{{F}_{A}}={{F}_{B}}={{F}_{C}}\]    

    B) \[{{F}_{A}}<{{F}_{B}}<{{F}_{C}}\]

    C)        \[{{F}_{A}}={{F}_{B}}<{{F}_{C}}\]

    D)        \[{{F}_{A}}>{{F}_{B}}>{{F}_{C}}\]

    Correct Answer: A

    Solution :

    Force acting on the base of vessels A, B and C is the weight of block and weight of water, which is same for all the three vessels. Hence, \[{{F}_{A}}={{F}_{B}}={{F}_{C}}\].


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