The dimensions of couple are | PHYSICS - DIMENSIONAL FORMULAE AND DIMENSIONAL EQUATIONS | SolveeIt | Solveeit

Today, August 18

Question

The dimensions of couple are

A

$ML^{2}T^{- 2}$

B

$MLT^{- 2}$

C

$ML^{- 1}T^{- 3}$

D

$ML^{- 2}T^{- 2}$

Answer

$ML^{2}T^{- 2}$

Explanation

Solution

Couple = Force $\times$ Arm length

= $\lbrack MLT^{- 2}\rbrack\lbrack L\rbrack = \lbrack ML^{2}T^{- 2}\rbrack$