Calculate the pressure at the bottom of a fresh water lake of depth 10 m. The atmospheric pressure = 76 cm of mercury and the density of mercury = `13.6g*cm^(-3)`.
Text Solution
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Pressure at the bottom of the lake = atmospheric pressure + Pressure exerted by a 10 m water column `=76xx13.6xx980+10xx100xx1xx980` `=980(76xx13.6+1000)=980xx2033.6` `=1.993xx10^(6)dyn*cm^(-2)`.
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