Pressure at free surface of a water lake...

Pressure at free surface of a water lake is `P_(1)`, while at a point at depth h below its free surface is `P_(2)`. (a) How are `P_(1)` and `P_(2)` related ? (b) which is more `P_(1)` or `P_(2)` ?

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The correct Answer is:

(a)` P_(2)=P_(1)+hrhog`, (b) `P_(2)gtP_(1)`

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