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Liquid Inside a U-Tube

A liquid exer...

Question

A liquid exerts a pressure of $100, 999 P a$ on an object when it is $73.5 c m$ below the liquid surface. What is the density of the liquid? (Take $g = 10 m s^{- 2}$ )

136 k g m^{- 3}

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272 k g m^{- 3}

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13, 700 k g m^{- 3}

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27, 200 k g m^{- 3}

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Solution

The correct option is C $13, 700 k g m^{- 3}$
Pressure = $ϱ g h$ = $ϱ \times 10 \times 0.735 m$
$\frac{100999}{7.35} = ϱ = 13700 k g / m^{3}$

Suggest Corrections

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1 g / c m^{3}

1 \times 10^{5}

Fill in the blanks:

(1) A solid is completely immersed in a liquid. The force exerted by the liquid on the solid will be in vertically ………….. direction.

(2) When an object sinks into the liquid, the density of object is ………….. than density of the liquid.

(3) The …………… on unit surface area is called pressure.

(4) The buoyant force is greater if density is ………….. .

(5) The SI unit of pressure is ……………. .

20 m

1000 k g m^{- 3}

g = 10 m s^{- 2}

0.1 c m

0.06 N / m

10^{3} k g / m^{3}

1100 N m^{- 2}

(g = 9.8 m s^{- 2})

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