A rectangular bar of soap has density 800 kg/m3 floats in water of density 1000 kg/m3. Bath oil of density 300 kg/m3 is slowly added, forming a layer that does not mix with the water. When the top surface of the oil is at the same level as the top surface of the soap, what is the ratio of the oil layer thickness to the soap's thickness, x/L?

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Q. A rectangular bar of soap has density

800 k g / m^{3}

floats in water of density

1000 k g / m^{3}

. Oil of density

300 k g / m^{3}

is slowly added, forming a layer that does not mix with water. When the top surface of the oil is at the some level as the top surface of the soap. What is the ratio of the oil layer thickness to the soaps thickness,

x / L

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Figure

(a) 850
(b) 900
(c) 950
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