Horizontal tube of non-uniform cross-section has radius of $0.2\,m$ and $0.1\,m$ respectively at $P$ and $Q$. For streamline flow of liquid, the rate of liquid flow

830-373

  • A

    greater at $P$ than $Q$

  • B

    greater at $Q$ than $P$

  • C

    changing continuously with time

  • D

    same at $P$ and $Q$

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