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  • The mass and volume of a body are 4.237\; g and 2.5\; cm^{3} , respectively. The density of the material of the body in correct significant figures is: a) 1.6048 \; g/cm^{3} b) 1.69 \; g/cm^{3} c) 1.7 \; g/cm^{3} d) 1.695 \; g/cm^{3}

The mass and volume of a body are 4.237\; g and 2.5\; cm^{3} , respectively. The density of the material of the body in correct significant figures is:

a) 1.6048 \; g/cm^{3}

b) 1.69 \; g/cm^{3}

c) 1.7 \; g/cm^{3}

d) 1.695 \; g/cm^{3}

Answers (1)

The answer is the option (c) 1.7 \; g\; cm^{-3}

Explanation: When we are performing multiplication or division, we should keep in mind to retain as many significant figures in the original no. with the least significant figures.

We know that Density = mass/ volume

=4.237/2.5

=1.7\; g\; cm^{-3}

So, we get the above no. after rounding up 2 significant figures.

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