1.

Water is flowing in a pipe of diameter 4 cm with a velocity 3 m/s. The water then enters into a tube of diameter 2 cm. The velocity of water in the other pipe is           [BCECE 2005]

A.            3 m/s                                       
B.            6 m/s
C.            12 m/s                                    
D.            8 m/s
Answer» D.            8 m/s


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