Questions
A leak proof cylinder of length 1m, made of a metal which has very low coefficient of expansion is floating, vertically in water at such that its height above the water surface is 20cm. When the temperature of water is increased to , the height of the cylinder above the water surface becomes 21cm. The density of water at , relative to the density at is close to:
detailed solution
Correct option is A
During floating, gravity is balanced by buoyancy⇒mg = B⇒mg = ALρg⇒At 0oC , mg=A80ρ00Cg ⇒At 4oC , mg=A79ρ40Cg Dividing, ρ40CP00C=8079=1.01Talk to our academic expert!
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