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Railways General Science & Technology Thermal Properties of Matter / द्रव्य के तापीय गुण Sample Paper Properties of Matter Sample Test Paper-3

  • question_answer
    In the following figure is shown the flow of liquid through a horizontal pipe. Three tubes A, B and C are connected to the pipe. The radii of the tubes A, B and C at the junction are respectively 2 cm, 1 cm and 2 cm. It can be said that the

    A)  Height of the liquid in the tube A is maximum

    B)  Height of one liquid in the tubes A and B is the same

    C)  Height of the liquid in the three tubes is the same

    D)  Height of the liquid in the tubes A and C is the same

    Correct Answer: D

    Solution :

    [d] As cross-section areas of both the tubes A and C are same and tube is horizontal. Hence according to equation of continuity \[{{V}_{A}}={{V}_{C}}\] and therefore according of Bernoulli's theorem \[{{P}_{A}}={{P}_{C}}\] i.e. height of liquid is same in both the tubes A and C.


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