Questions
Density of a substance at is and at is . Coefficient of linear expansion of solid is
a
0.0006/0C
b
0.0004/0C
c
0.0003/C 0
d
0.0002/C 0
detailed solution
Correct option is D
coefficient of volume expansion of solid is γ=ρ1−ρ2ρ2Δt here ρ1 is density at 00C=10.6gm/cc ρ2 is density at 1000C=10 gm/cc Δt is change in temperature and γ=3α substitute these values in above equation ⇒3α=10.6-1010(100-0) α=0.63000 α=2×10−4=0.0002/0CTalk to our academic expert!
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If the volume of a block of metal changes by 0.12%. when it is heated through 20°C, then the coefficient of linear expansion is
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