Difficult
Water is flowing continuously from a tap having an internal diameter $8 \times 10^{-3}\, m$. The water velocity as it leaves the tap is $0.04\, ms^{-1}$. The diameter of the water stream at a distance $8 \times 10^{-1}\, m$ below the tap is close to
- A$9.6 \times 10^{-3}\, m$
- B$3.6 \times 10^{-3}\, m$
- C$0.8 \times 10^{-3}\, m$
- D$6.4 \times 10^{-3}\, m$
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