Medium
$A$ horizontal tube of non-uniform cross-section has radii of $0.2\,m$ and $0.1\,m$ at points $P$ and $Q$ respectively. For the streamline flow of an incompressible liquid,the rate of liquid flow is:
- Agreater at $P$ than $Q$
- Bgreater at $Q$ than $P$
- Cchanging continuously with time
- Dsame at $P$ and $Q$
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