NEET Physics Mathematical Tools, Units & Dimensions Question Bank Units

  • question_answer
    A cube has numerically equal volume and surface area. The volume of such a cube is   [CPMT 1971, 74]

    A) 216 units

    B)       1000 units

    C)       2000 units

    D)          3000 units

    Correct Answer: A

    Solution :

                      Volume of cube = \[{{a}^{3}}\]          Surface area of cube = \[6{{a}^{2}}\]          according to problem a3 = 6a2 Þ a = 6 \\[V={{a}^{3}}=216\,units\].                       


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