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The density of a substance at 0°C is l0 g/cc and at l00°C, its density is 9.7 g/cc. The coefficient of linear expansion of the substance is

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10-2

10-3

10-4

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detailed solution

Correct option is D

The coefficient of volume expansion is given byγ = ∆ρρ1×∆Twhere ρ1 is density, T is temperatureγ = ρ1-ρ2ρ1(T2-T1) = 10-9.710(100-0) = 3×10-4Coeffiicient of linear expansion isα = γ3 = 3×10-43 = 10-4

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A vessel having coefficient of cubical expansion $γ_{g}$ contains liquid Of coefficient of real expansion r_R up to certain level. When Vessel
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d	$γ_{g} = 0$	s	liquid level first falls and then rises