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If pressure P, velocity V and time T are taken as fundamental physical quantities, the dimensional formula of force ifA. `PV^2T^2`B. `P^-1V^2T^-2`C. `PVT^2`D. `P^-1VT^2` |
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Answer» Correct Answer - A Let `Fpropp^xV^yT^z` by subsituting the following dimensions: `[P]=[ML^-1T^-2][V]=[LT^-1]`,`[T]=[T]` and comparing the dimension of both sides `x=1`,`y=2`,`z=2`, so `F=PV^2T^2` |
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