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प्रश्न
The pressure P1 at a certain depth in river water and P2 at the same depth in sea water are related as :
विकल्प
P1 > P2
P1= P2
P1 < P2
P1 - P2 = atmospheric pressure
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उत्तर
The pressure P1 at a certain depth in river water and P2 at the same depth in sea water are related as : P1 < P2
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