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  • For the arrangement shown in the figure, what is the density of oil? &

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

 

Option: 1

416 kg/\mathrm{m}^3


Option: 2

400 kg/\mathrm{m}^3


Option: 3

512 kg/\mathrm{m}^3


Option: 4

916 kg/\mathrm{m}^3


Answers (1)

best_answer

\begin{aligned} & \rho_0+\rho_w g l=\rho_0+\rho_{\text {oil }}(l+d) \cdot g \\ & \rho_{\text {oil }}=\frac{\rho_{\omega l}}{l+d}=\frac{1000 \times 135}{(135+12.3)} \\ & \rho_{\text {oil }}=916 \mathrm{~kg} / \mathrm{m}^3 \text { Ans. } \end{aligned}

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