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For the arrangement shown in the figure,...

For the arrangement shown in the figure, what is the density of oil?
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Text Solution

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According to the figure, for the equilibrium of liquid Net downward force = Net upward force
`rho_(0)+rho_(w)gl=rho_(0)+rho_(oil) (l+d)g`
`implies rho_(oil)=(rho_(w)l)/(l+d)=(1000xx(135))/((135+12.3))=916 kgm^(-3)`
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