Q.

Density of a substance at 00C is 10.6gm/c.c and at 1000C is 10gm/c.c . Coefficient of linear expansion of solid is

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0.0006/0C

0.0004/0C

0.0003/C 0

0.0002/C 0

answer is 4.

(Detailed Solution Below)

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Detailed Solution

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=0.0002/0C

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