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Water is flowing through a long horizont...

Water is flowing through a long horizontal tube. Let `P_A and P_B` be the pressures at two points A and B of the tube

A

`P_(A)` must be equal to `P_(B)`

B

`P_(A)` must be greater than `P_(B)`

C

`P_(A)` must be smaller than `P_(B)`

D

`P_(A)=P_(B)` only in the cross sectional area at A and B are equal

Text Solution

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The correct Answer is:
D
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