(39) What is density of a substance? Obtain its SI unit
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Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. ... Density can also be expressed as kilograms per cubic metre (in MKS or SI units).
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density means mass per unit volume . SI unit is kgm³
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