Question

3. The mass per unit volume of a substance is
(a) acceleration (b) density (c) velocity (d) weight​

Answer 1

Density

Density is defined as the mass per unit volume of the substance. This formula implies that greater the mass of a body, greater is its density while greater the volume occupied by a body, smaller is the density of that body. The S.I. unit of density is kg/m3.

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Answer 2

The mass per unit volume of a substance is density.

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