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Water is flowing continuously from a tap...

Water is flowing continuously from a tap having an internal diameter `8xx10^-3m`. The water velocity as it leaves the tap is `0.4ms^-1`. The diameter of the water stream at a distance `2xx10^-1`m below the tap is close to:

A

`5 xx 10^3` m

B

`7.5 xx 10^3` m

C

`3.6 xx 10^3` m

D

`9.6 xx 10^3` m

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