JEE Main & Advanced JEE Main Online Paper (Held On 23 April 2013)

  • question_answer
    The ratio of the coefficient of volume expansion of glass container to that of a viscous liquid kept inside the container is 1: 4. What fraction of the inner volume of the container should the liquid occupy so that the volume of the remaining vacant space will be same at all temperatures?   [JEE Main Online Paper ( Held On 23  April 2013 )      

    A) 2: 5        

    B)                        1 : 4

    C)                        1 : 64                                     

    D)                        1 : 8

    Correct Answer: B

    Solution :

    When there is no change in liquid level in vessel then\[\gamma {{'}_{real}}=\gamma {{'}_{vessel}}\]Change in volume in liquid relative to vessel                  \[\Delta {{V}_{app}}=V\gamma {{'}_{app}}\Delta \theta =V(\gamma {{'}_{real}}-\gamma {{'}_{vessel}})\]


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