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 = ms-2, density = 1.2 x 104kg m-3, density of water = 1.0 x 103m-3]
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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