The barometric reading at a place is 73.5m Hg. Calculate the pressure at a point 30m below the surface of water contained in a reservoir at the place. [g = 10ms\(^{-2}\), density of mercury = 1.2 x 10\(^4\)kg m\(^{-3}\), density of water = 1.0 x 10\(^3\)m\(^{-3}\)]
a
4.0 x 105 Nm-2
b
3.0 x 10 5 Nm-2
c
2.0 x 105 Nm-2
d
1.0 x 105 Nm-2
Explanation
Correct Option
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Chinonyerem127
3 years ago
the pressure =the atmospheric pressure + pressire dues to depth of water
1.3*10^4*10*0.735 +(1.0*10^3*10*30)
