A hole is made at the bottom of tank filled with water. If the total pressure at the bottom of tank is 3 atmosphere then velocity of efflux is
a. 20m/s
b. 10V2m/s
c. 1076m/s
d. 10V10m/s
I know the answer is 20m/s but why pressure at top is taken 1 atm??
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because the pressure exerted by the atomosphere on the top of water surface make water move out of hole so its taken 1atm
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