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Water is flowing continuously from a tap having an internal diameter `8xx10^(-3)`m. The water velocity as it leves the tap is `0.4 ms^(-1)`. The diameter of the water stream at a distance `2xx10^(-1)`m below the tap is close to `(g=10m//s^(2))`

A

`5.0 xx 10^-3 `m

B

`7.5 xx 10^-3 `m

C

`9.6 xx 10^-3 `m

D

`3.6 xx 10^-3 `m

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