Question : Specific gravity is defined as the ratio of
Option 1: density of the substance to the density of the water.
Option 2: density of the substance to the density of the water at 0oC.
Option 3: density of water at 4oC to the density of the substance.
Option 4: density of the substance to the density of the water at 4oC.
Correct Answer: density of the substance to the density of the water at 4 o C.
Solution : The correct answer is the density of the substance to the density of the water at 4 o C .
Specific gravity is described as the ratio of a substance's density to that of water at 4°C (39.2°F). It is a dimensionless quantity, which means it lacks units. The density of different substances can be compared using specific gravity. A material having a specific gravity of 2.0, for example, is twice as dense as water.
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