Question

Dimensions of potential energy are :-

• A. $ML{T}^{-1}$
• B. $M{L}^2{T}^{-2}$
• C. $M{L}^{-1}{T}^{-2}$
• D. $M{L}^{-1}{T}^{-1}$

Answer 1

Answer: (B)

$[U]=[mgh]=[M]\left[L{T}^{-2}\right][L]=\left[M{L}^2{T}^{-2}\right]$