Answers

2014-03-16T19:07:30+05:30
Relative density, or specific gravity, is the ratio of the density of a substance to the density of a given reference material. Specific gravity usually means relative density with respect to water.
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2014-03-16T19:18:51+05:30
Relative density refers to the ratio between the density of a substance to the density of water
it does not have any unit
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