NEET Physics Mathematical Tools, Units & Dimensions Question Bank Dimensions

  • question_answer
    An object is moving through the liquid. The viscous damping force acting on it is proportional to the velocity. Then dimension of constant of proportionality is?                                        [Orissa JEE 2002]

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

    B)               \[ML{{T}^{-1}}\]

    C)             \[{{M}^{0}}L{{T}^{-1}}\]

    D)               \[M{{L}^{0}}{{T}^{-1}}\]

    Correct Answer: D

    Solution :

                    \[F\propto v\Rightarrow F=kv\Rightarrow [k]=\left[ \frac{F}{v} \right]=\left[ \frac{ML{{T}^{-2}}}{L{{T}^{-1}}} \right]=[M{{T}^{-1}}]\]


You need to login to perform this action.
You will be redirected in 3 sec spinner