alleryThe dimensional formula of pressure is:
A$[\mathrm{ML}^{-1}\mathrm{T}^{-2}]$
B$[\mathrm{MLT}^{-2}]$
C$[\mathrm{ML}^{2}\mathrm{T}^{-2}]$
D$[\mathrm{M}^{0}\mathrm{L}^{0}\mathrm{T}^{0}]$
Answer & Solution
Correct answer: A. $[\mathrm{ML}^{-1}\mathrm{T}^{-2}]$
Pressure $=\dfrac{\text{force}}{\text{area}}$.
Since force has dimensions $[MLT^{-2}]$ and area has dimensions $[L^2]$, pressure has dimensions $[ML^{-1}T^{-2}]$.
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