A manometer connected to closed tap reads 3.5×105N/m2. When the valve is opened , the reading of manometer falls to 3×105N/m2 , then velocity of flow of water is
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a
100 m/s
b
10 m/s
c
1 m/s
d
1010 m/s
answer is B.
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Detailed Solution
Applying Bernoullie’s theorem we get,12v2=P1−P2ρ⇒v2=2×0.5×105103⇒v=10ms−1