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NEET Sample Paper NEET Sample Test Paper-55

  • question_answer
                The mass of water that rises in capillary tube of radius R is M. The mass of water that rises in tube of radius 2R is-

    A) M                                

    B) M/2

    C) 2M                               

    D) 4M

    Correct Answer: C

    Solution :

    \[\because \,\,\,M\propto V\] \[\propto \,\,{{R}^{2}}\,\times \,h\] \[\propto \,\,{{R}^{2}}\,\times \,\frac{1}{R}\,\,\,\,\,\,\,(\because \,\,h\propto \frac{1}{R})\] \[M\,\,\propto \,\,R\]


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