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PHYSICS

JAMB 2017 - Question 35

Physics 2017 JAMB Past Questions - Question 35: A hydrometer is an instrument for measuring the

Choose the correct answers from the options given.

A hydrometer is an instrument for measuring the

A: depth of water in a vessel

B: relative humidity of the air

C: relative density of a liquid by finding the apparent loss in weight

D: relative density of a liquid by the methods of flotation

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Correct Answer

Explanation

density or specific gravity of a liquid. It is commonly used in various industries, such as brewing, winemaking, and automotive maintenance. The hydrometer works based on the principle of buoyancy, where the denser the liquid, the higher the hydrometer floats. By measuring the level at which the hydrometer floats, one can determine the density or specific gravity of the liquid being tested.