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Relative Density

What is the S...

Question

What is the SI unit of relative density?

A

kilogram per metre cube

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B

metre cube per gram

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C

kilogram

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D

No unit

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Solution

The correct option is D No unit
Relative density is defined as the ratio of the density of a substance with respect to the density of a given reference material, at a given temperature. As relative density is the ratio of densities so, it is a dimensionless quantity, and hence, has no unit.

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