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A siphon is used to drain water from a large tank as shown in figure below. Assume that the level of water is maintained constant. Ignore frictional effect due to viscosity and losses at entry and exit. At the exit of the siphon, the velocity of water is
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- √2g(ZQ - ZR)
- √2g(ZP - ZR)
- √2g(ZO - ZR)
- √2g ZQ
Correct Option: B
Applying Bernoulli’s equation between the points ‘P’ and ‘R’.
| + | + Zp = | + | + ZR | ||||
| 2g | ρg | 2g | ρg |
Since the level of liquid in tank remains the same,
VP = 0
∴ VR = √2g(ZP - ZR)
