12. The radius of a metal sphere is 100 cm at 0°C and 101 cm at 100° – InterviewSolution

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12. The radius of a metal sphere is 100 cm at 0°C and 101 cm at 100°C. The coefficient of volumeexpansion of metal of metal is

Answer»

Explanation: In this CASE, dt=100; dl=1cm =0.01m; l=100 CM = 1m

So, α = 0.01/100 = 1 X 10

−4

But γ=3X α

γ=3X1X 10 −4

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