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Density of the material of a paper is o....

Density of the material of a paper is o.4g `cm^(-3)`.The mass of the paper is 0.5 g and its length and breadth are 10 cm and 4 cm, respectively. Determine the thickness of the paper.

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Density of paper =` 0.4 " g " cm^(-3)`
Mass of paper = 0.5 g
Volume of paper =` 0.5/0.4 = 1.25 " "cm^(3)`
Volume = `( length xx breadth xx thickness)`
Thickness =`1.25/(10xx4)=1.25/40 = 0.03125`
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