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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
In The Following Fig. Is Shown The Flow Of Liquid Through A ...
Options:
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: Option D
:
D
As cross-section areas of both the tubes A and C are same and tube is horizontal. Hence according to equation of continuity vA=vC and therefore according to Bernoulli's theorem PA=PC i.e. height of liquid is same in both the tubes A and C.

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