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The approximate depth of an ocean is 2700 m. The compressibility of water is 45.4 x 10^{-11} Pa^{-1} and density of water is 10^{3}kg/m^{3}. What fractional compression of water will be obtained at the bottom of the ocean?

(a)0.8x10^{-2}

(b)1.0x10^{-2}

(c)1.2x10^{-2}

(d)1.4x10^{-2}

NEET - 2015

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If pressure at half the depth of a lake is equal to 2/3 pressure at the bottom of the lake then what is the depth of the lake

(a) 10 m (b) 20 m

(c) 60 m (d) 30 m

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An inverted bell lying at the bottom of a lake 47.6 m deep has 50 cm^{3} of air trapped in it. The bell is brought to the surface of the lake. The volume of the trapped air will be (atmospheric pressure = 70 cm of Hg and density of Hg = 13.6 g/cm^{3})

(a) 350 cm^{3} (b) 300 cm^{3}

(c) 250 cm^{3} (d) 22 cm^{3}

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A siphon in use is demonstrated in the following figure. The density of the liquid flowing in siphon is 1.5 gm/cc. The pressure difference between the point P and S will be

(a) ${10}^{5}\mathrm{N}/\mathrm{m}$ (b) $2\times {10}^{5}\mathrm{N}/\mathrm{m}$

(c) Zero (d) Infinity

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