Question

Dimensional expression ML2T-3 is of which physical quantity?

Answer 1

answer : power

explanation : Dimensional expression is $ML^2T^{-3}$.

here M denotes mass, L denotes length and T denotes time.

if we see all of these in SI unit,

Mass => Kg , Length => m and Time => sec

so, dimensional expression $ML^2T^{-3}$ converts into unit expression Kgm²/s³ .

as you know, unit of power is also kgm²/s³ .

[ power = energy/time = kgm²/s²/s = kgm²/s³ ]

so, given expression must be dimensional expression of power.

Answer 2

Hope you will understand