NEET Physics Mathematical Tools, Units & Dimensions Question Bank Dimensions

  • question_answer
    Dimensional formula for latent heat is             [MNR 1987; CPMT 1978, 86; IIT 1983, 89; RPET 2002]

    A)             \[{{M}^{0}}{{L}^{2}}{{T}^{-2}}\]     

    B)             \[ML{{T}^{-2}}\]

    C)             \[M{{L}^{2}}{{T}^{-2}}\]

    D)               \[M{{L}^{2}}{{T}^{-1}}\]

    Correct Answer: A

    Solution :

                     \[Q=mL\Rightarrow L=\frac{Q}{m}\]  (Heat is a form of energy)             = \[\frac{M{{L}^{2}}{{T}^{-2}}}{M}=[{{M}^{0}}{{L}^{2}}{{T}^{-2}}]\]


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