The volume of a metal sphere increases by 0.15
Asked by admin @ in Physics viewed by 254 People
the volume of a metal sphere increases by 0.15% when its temperature is raised by 24 degree centigrade efficient of linear expansion of metal is
Answered by admin @
γ = Coefficient of Volumetric expansion
V = initial Volume before expansion
ΔV = expansion of Volume = 0.15% of V = 0.0015 V
ΔT = change in temperature = 24 deg
change in Volume is given as
ΔV = V γ ΔT
inserting the values
0.0015 V = V (24) γ
γ = 62.5 x 10⁻⁶
Coefficient of linear expansion is given as
α = γ/3
α = (62.5 x 10⁻⁶)/3
α = 20.83 x 10⁻⁶
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