Haryana PMT Haryana PMT Solved Paper-2004

  • question_answer
    Which of following pairs does not have similar dimensions?

    A) Plancks  constant  and  angular momentum

    B)  Tension and surface tension

    C)  Angle and strain

    D)  Stress and pressure

    Correct Answer: A

    Solution :

                                             Form, the formula, surface tension \[=\frac{force}{length}\] Dimensions of S.T. \[=\frac{Dimensions\text{ }of\text{ }force}{Dimension\text{ }of\text{ }length~~~}=\frac{ML{{T}^{-2}}}{L}=[M{{T}^{-2}}]\]L Dimensions of tension is same as dimensions of force \[=[ML{{T}^{-2}}]\]. Here surface tension and tension do not have similar dimensions.                       


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