Q. $\lbrack ML^{- 2}T^{- 2}\rbrack$ represents dimensional formula of which of the following physical quantities?
A) Energy
B) pressure
C) Torque
D) Pressure gradient
Explanation
$\left\lbrack ML^{- 2}T^{- 2} \right\rbrack = \frac{\lbrack MLT^{- 2}\rbrack}{\lbrack L\rbrack\lbrack L^{2}\rbrack}$ $= \frac{Force}{distance \times area} = \frac{pressure}{distance}$ $= pressure\ gradient.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.