Monday, January 24, 2011

Archimedes's principle

A bucket fully immersed under water in a well appears to be very light. When this bucket is brought above the water level it weighs quite heavy. When the bucket is under the water level, the liquid displaced by the bucket exerts an upward force on it. This is known as the resultant up thrust    (or) buoyancy.

Archimedes’ principle states that, “when a body is immersed in a liquid it suffers an apparent loss of weight equal to the weight of the liquid displaced by it”. 



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