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.

Explanation

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 " thicknes")`
Thickness =`(1.25)/(10 xx 4)=(1.25)/(40)=0.03125m`
=0.3125 mm