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Question : Lactometers (used to determine the purity of a sample of milk) and hydrometers (used to determine the density of liquids) are based on the ______ principle.

Option 1: Archimedes

Option 2: Special Relativity

Option 3: Relativity

Option 4: Uncertainty


Team Careers360 5th Jan, 2024
Answer (1)
Team Careers360 10th Jan, 2024

Correct Answer: Archimedes


Solution : The correct option is Archimedes.

Lactometers and hydrometers are both based on Archimedes' principle. This principle states that an object submerged in a fluid experiences an upward buoyant force equal to the weight of the fluid it displaces. In the case of lactometers and hydrometers, they float in the liquid being tested, and their buoyancy is affected by the density of the liquid, allowing for measurements related to purity (as in the case of lactometers for milk) or density (as in the case of hydrometers for various liquids).

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