Question

$\left[M{L}^{-2}{T}^{-2}\right]$ represents dimensional formula of which of the following physical quantities?

• A. Energy
• B. Pressure
• C. Torque
• D. Pressure gradient

Answer 1

Answer: (D)

As, $\left[M{L}^{-2}{T}^{-2}\right]=\frac{\left[ML{T}^{-2}\right]}{[L]\left[L^2\right]}$
$=\frac{\text{ Force }}{\text{ Distance }\times \text{ area }}$
$=\frac{\text{ Pressure }}{\text{ Distance }}$
=Pressure gradient