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Question
On what principle does Lactometer work?
On what principle does Lactometer work?
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Solution
The correct option is D Archimedes' principle
Lactometer is a small glass instrument that is used to test the purity of the milk. It works on the Archimedes' Principle. It measures the relative density of milk with respect to water. The lactometer floats in pure milk whereas it sinks if the milk is impure as milk is denser than water. Thus it can be found out that how much water has been mixed with the milk. The deeper it sinks, the more impure the milk.
Lactometer is a small glass instrument that is used to test the purity of the milk. It works on the Archimedes' Principle. It measures the relative density of milk with respect to water. The lactometer floats in pure milk whereas it sinks if the milk is impure as milk is denser than water. Thus it can be found out that how much water has been mixed with the milk. The deeper it sinks, the more impure the milk.
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