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NEET Sample Paper NEET Sample Test Paper-58

  • question_answer
    If P represents radiation pressure, C represents speed of light and Q represents radiation striking unit area second, then non zero integers x, y and z, such that \[{{P}^{x}},{{Q}^{y}},{{C}^{z}}\]  is dimensionless are:

    A) x = 1, y = 1, z = -1   

    B) x = 1, y = -1, z = 1

    C) x = -1, y = 1, z = 1   

    D) x = I, y = I, z = 1

    Correct Answer: B

    Solution :

    [b] \[[P]={{M}^{1}}{{L}^{-1}}{{T}^{-2}}\,\,\,[C]=L{{T}^{-1}}\,\,\,\,\,\,\,[Q]=M{{T}^{-3}}\] \[{{P}^{x}}{{Q}^{y}}{{C}^{z}}\]Dimensionless \[x+y=0\]                                                 \[-x+z=0\] Option [b] satisfy the condition.


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