Which instrument determines specific gravity of liquids

(A) Gravimeter
(B) Hydrometer
(C) Hygrometer
(D) Hypsometer

Correct Answer : Hydrometer
Question Asked : Bihar Police Sub Inspector Prelims Exam 2018
A hydrometer is an instrument that measures the specific gravity (relative density) of liquids means the ratio of the density of the liquid to the density of water. A hydrometer is usually made of.glass, and consists of a cylindrical stem and a bulb weighted with mercury or lead shot to make it float upright.
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