The figure shows a siphon. Choose the wrong s | vedclass

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(B) For a siphon to work,there must be a pressure difference,which requires $h_3 > 0$. Thus,statement $A$ is correct.Applying Bernoulli's equation bet

Vedclass · Accepted Answer

Pressure at point $2$ is $P_2 = P_0 - \rho gh_3$

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(B) For a siphon to work,there must be a pressure difference,which requires $h_3 > 0$. Thus,statement $A$ is correct.Applying Bernoulli's equation between the free surface of the liquid (at $h=0$) and the exit point $3$:$P_0 + 0 = P_0 + \frac{1}{2}\rho v^2 - \rho g h_3$$\frac{1}{2}\rho v^2 = \rho g h_3$Now,applying Bernoulli's equation between the free surface and point $2$ (at height $h_3$ above point $3$):$P_0 + 0 = P_2 + \frac{1}{2}\rho v^2 + \rho g h_3$Substituting $\frac{1}{2}\rho v^2 = \rho g h_3$:$P_0 = P_2 + \rho g h_3 + \rho g h_3 = P_2 + 2\rho g h_3$$P_2 = P_0 - 2\rho g h_3$Therefore,the statement in option $B$ is incorrect. Point $3$ is open to the atmosphere,so its pressure is $P_0$,making statement $C$ correct. Since $B$ is incorrect,the wrong statement is $B$.

The figure shows a siphon. Choose the wrong statement:
($P_0$ = atmospheric pressure)

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The figure shows a siphon. Choose the wrong statement:($P_0$ = atmospheric pressure)