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A solid whose volume does not change with temperature, floats in a liquid. Fractions $f_{1} a n d f_{2}$ of its volume remain submerged for two different temperatures $t_{1} a n d t_{2}$ of liquid. The volume coefficient of expansion of liquid is

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f1+f2f1t1+f2t2

f1+f2f1t2+f2t1

f1-f2f1t1+f2t2

f1-f2f2t1-f1t2

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detailed solution

Correct option is D

For floating body B = Wρt.V.g = σ.VS.g

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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
Is heated, match column I and column II.

	Column - I		Column - II
a	$γ_{g} < γ_{R}$	p	liquid level rises continuously from beginning
b	$γ_{g} = γ_{R}$	q	liquid level falls continuously from beginning
c	$γ_{g} > γ_{R}$	r	liquid level remains same
d	$γ_{g} = 0$	s	liquid level first falls and then rises