short note on working principle of lactometre
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Lactometer is a small glass instrument that is used to test the purity of the milk. It works on the principle of specific gravity of milk (Archimede's Principle). It measures the relative density of milk with respect to water. If the specific gravity of a sample of milk is within the approved ranges, the milk is pure.
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Locomotion is the act of moving from place to place. ... It is obvious that the application of a force to a stationary body produces motion by overcoming inertia and by overcoming such restraining forces as friction and viscosity of the surrounding environment.
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