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7. In the following fig. is shown the flow of liquid through a horizontal pipe. Three tubes A, B and C are connected to the pipe. The radii of the tubes A, B and C at the junction are respectively 2 cm, 1 cm and 2 cm. It can be said that the

(a)  Height of the liquid in the tube A is maximum

(b)   Height of the liquid in the tubes A and B is the same

(c)   Height of the liquid in all the three tubes is the same

(d)   Height of the liquid in the tubes A and C is the same

Answer-d

(12)

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