A tall vertical cylinder filled with water is kept on a horizontal table top. Two small holes A and B are made on the wall of the cylinder, A near the middle and B just below the free surface of water. State and explain your observation

Question

Susmita · Answer

Let the column be of height H. Let h 1 and h 2 be the distance of B and A from the top(or free surface) of water column. So as B is just below the free surface so h 1 is very small or almost zero. As A is in the middle of the column so h 2 =H/2. Then we know velocity of efflux v=root(2gh) Let v 1 is the velocity of liquid coming out through hole B.So v 1 =root(2gh 1 ) which very small or almost zero. If v 2 is the velocity of efflux through A then v 2 =root(2gh 2 )=root(2gH/2).This is obviously greater than v 1 .This is our 1st observation. Our second observation is the range is maximum for efflux through A as h=H/2.Means water coming out through A will fall far away from the cylinder than water from B. If it helps please approve.

Manvi jain · Answer

The water jet through A will have a larger horizontal range because the water pressure is more at that point. While B is just below the surface so water will come out of it without any significant pressure or jet. It will just leak through it

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A tall vertical cylinder filled with water is kept on a horizontal table top. Two small holes A and B are made on the wall of the cylinder, A near the middle and B just below the free surface of water. State and explain your observation

A tall vertical cylinder filled with water is kept on a horizontal table top. Two small holes A and B are made on the wall of the cylinder, A near the middle and B just below the free surface of water. State and explain your observation

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