Question on: JAMB Physics - 2020
A hydrometer is an instrument for measuring the
A
a depth of water of water in a vessel
B
relative density of a liquid by the method of flotation
C
relative density of a liquid by finding the apparent loss in weight
D
relative humidity of the air
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Correct Option: B
A hydrometer is specifically designed to measure the relative density of liquids using the principle of flotation. The instrument floats at a level that depends on the density of the liquid.
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