First slide

Dimensions of physical quantities

Question

Find the dimensional formula of Surface Tension, $T$ .

Easy

A

Dimensionless
B

$[{MT}^{- 1}]$
C

$[{MT}^{- 2}]$
D

$[{MT}^{- 3}]$

Solution

$T = \frac{F}{L} [T] = \frac{[F]}{[L]} = \frac{[M L T^{- 2}]}{[L]} = [{MT}^{- 2}]$

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