Physics

# $5.74\ g$ of a substance has density $4.8 gcm^{-3}$.Keeping significant figures in view,calculate its volume?

$1.2\ cm^3$

##### SOLUTION
Mass of substance  $m = 5.74 \ g$
Density of substance  $\rho = 4.8 \ g/cm^3$
So, volume of substance  $V = \dfrac{m}{\rho}$
$\implies \ V = \dfrac{5.74}{4.8} = 1.196 \ cm^3$
Since value of mass has 3 significant figures and density has 2 significant figures. Thus value of volume must also have only 2 significant figures.
$\implies \ V = 1.2 \ cm^3$

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Single Correct Medium Published on 18th 08, 2020
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