Question

What is density?

What is relative density?

What is the SI unit of density?छठी कक्षा में असफल होने पर सांत्वना देते हुए अपने छोटे भाई को पत्र लिखिए।
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Answer 1

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. ... For example, the density of air is 1.2 kilograms per cubic metre.

the ratio of the density of a substance to the density of a standard, usually water for a liquid or solid, and air for a gas.

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).