A) \[\rho {{v}^{2}}\]
B) \[\frac{1}{4}\rho {{v}^{2}}\]
C) \[\frac{3}{4}\rho {{v}^{2}}\]
D) \[\frac{1}{2}\rho {{v}^{2}}\]
Correct Answer: C
Solution :
[c] The momentum per second carried by liquid per second is |
[A is area of cross section of pipe] |
The force exerted due to reflected back molecules |
So, the resultant pressure is |
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