Question

# At a depth of 1000 m in an ocean, what is the absolute pressure? Given density of sea water is $$1.03 \times 10^3 kgm^{-3} ,\ g= 10ms^{-2}$$

A
104 atm
B
100 atm
C
108 atm
D
110 atm

Solution

## The correct option is A 104 atmGiven: $$h=1000m , d=1.03\times10^{3}kg/m^{3} , g=10m/s^{2}$$ The absolute pressure is given by: absolute pressure = pressure of water + atmospheric pressure$$P=hdg+1atm=1000\times1.03\times10^{3}\times10+1atm=1.03\times10^{7}Pa+1atm$$$$P=103atm+1atm=104atm$$Physics

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