MHT CET 2026 Physics question
A closed pipe containing liquid showed a pressure P by gauge. When the valve was opened, pressure was reduced to P. The speed of water flowing out of the pipe is (=density of water)
Answer: (B)
Solution
Apply Bernoulli's equation between the closed (static) liquid, where the speed is zero and the pressure is , and the opened pipe, where the pressure falls to and the water emerges with speed (horizontal flow, no height change): . Hence
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