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

Answer:

1)The mass of a unit volume of a substance is called its density.

2)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.

3) kilogram per cubic metre (kg/m3)