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Water is flowing steadily through a horizontal tube a of non uniform cross-section. If the pressure of water is `4xx10^(4)N//m^(2)` at a point where cross-section is `0.02m^(2)` and velocity of flow is `2m//s`, what is pressure at a point where cross-section reduces to `0.01m^(2)`

A

`1.4xx10^(4) N//m^(2)`

B

`3.4xx10^(4) N//m^(2)`

C

`2.4xx10^(4) N//m^(2)`

D

none of these

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