EAMCET Medical EAMCET Medical Solved Paper-2000

  • question_answer
    The physical quantity which has dimensional formula   as   that   of \[\frac{\text{Energy}}{\text{Mass x length}}\] is:

    A)  force                                   

    B)  power

    C)  pressure                            

    D)  acceleration

    Correct Answer: D

    Solution :

                     \[\frac{Energy}{Mass\times length}=\frac{[M{{L}^{2}}{{T}^{-2}}]}{[M][L]}=[L{{T}^{-2}}]\]  Force (F) = Mass(m) \[\times \] acceleration \[\therefore \]  \[[F]=[M][L{{T}^{-1}}]\]                 \[=[ML{{T}^{-1}}]\]  Power (P) = Force (F) \[\times \]velocity (v) \[\therefore \]  \[[P]=[ML{{T}^{-2}}][L{{T}^{-1}}]\]                 \[=[M{{L}^{2}}{{T}^{-3}}]\]  Pressure (p) \[\text{(P) = }\frac{\text{Force (F)}}{\text{Area (A)}}\] \[\therefore \]  \[[p]=\frac{[ML{{T}^{-2}}]}{[{{L}^{2}}]}=[M{{L}^{-1}}{{T}^{-2}}]\]  Acceleration \[\text{(a) =}\frac{\text{Forece }\!\![\!\!\text{ F }\!\!]\!\!\text{ }}{\text{Mass(m)}}\] \[\Rightarrow \]               \[[a]=\frac{[ML{{T}^{-2}}]}{[m]}=[L{{T}^{-2}}]\] So, choice  is correct.


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