The pressure $P_{1}$ at the top of a dam and $P_{2}$ at a depth $h$ from the top inside water (density $ρ$ ) are related as

P_{1} > P_{2}

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P_{1} = P_{2}

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P_{1} - P_{2} = h ρ g

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P_{2} - P_{1} = h ρ g

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Solution

The correct option is D $P_{2} - P_{1} = h ρ g$
Difference in pressure at the top and bottom of dam is equal to the pressure provided by water between these two points which is equal to $ρ g h$

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The pressure P1 at the top of a dam and P2 at a depth h from the top inside water (density ρ) are related as

The correct option is D P2−P1=hρgDifference in pressure at the top and bottom of dam is equal to the pressure provided by water between these two points which is equal to ρgh

The pressure $P_{1}$ at the top of a dam and $P_{2}$ at a depth $h$ from the top inside water (density $ρ$ ) are related as

The correct option is D $P_{2} - P_{1} = h ρ g$
Difference in pressure at the top and bottom of dam is equal to the pressure provided by water between these two points which is equal to $ρ g h$