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Density is ratio of __________

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Density is ratio of __________

(a) mass to volume

(b) volume to mass

(c) mass to pressure

(d) pressure to volume

The question was asked in a job interview.

I need to ask this question from Doublet Flow in section Inviscid & Incompressible Flow of Aerodynamics

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Best answer
The correct answer is (a) mass to volume

Best explanation: Density is the ratio of mass to volume and is measured in kilograms per meters cube. The density of the liquids remains constant while the density of gases changes with the variation of pressure and temperature.

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