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The tank in fig discharge water at constant rate for all water levels above the air inlet R The height above datum to which water would rise in the manometer tubes M and N respectively are _______&________ |
Answer»  Pressure at Datum `=P_(ATM)+hrhog ""…….(1)` reading of manometer `(M)` pressure difference between Datum and atmosphere `=hrhog` HEIGHT of water in manometer `(M) = 20CM` of water since discharge rate is constant means pressure at Datum remain constant reading of manometer `(N)=` Pressure difference atmosphere and between above water level `P_(atm)-P"".......(2)` `=40` Pressure at datum `P^(')+hrhog""........(3)` From (1) and (3) ,` P_(atm)+hrhog=p^(')H^(')rhogimpliesP_(atm)-P'=(h^(')-h)rhog=40cm` of water Height of water in `N=60cm` |
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