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41. An L-shaped glass tube is just immersed in flowing water such that its opening is pointing against flowing water. If the speed of water current is v, then

(a)   The water in the tube rises to height v2 /2g

(b)  The water in the tube rises to height  g/2v2

(c)   The water in the tube does not rise at all

(d)  None of these

Answer-a

 

 

(71)

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