Question:medium
The rate of flow of a liquid through a capillary tube of radius $r$ and length $l$ under a pressure difference $P$ is proportional to
The rate of flow of a liquid through a capillary tube of radius $r$ and length $l$ under a pressure difference $P$ is proportional to
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Remembering the key components of Poiseuille's Law—pressure difference, radius raised to the fourth power, and length in the denominator—is crucial for solving such problems.
Updated On: May 31, 2026
- $r^4 / l$
- $r^2 / l$
- $r / l$
- $r^3 / l$
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The Correct Option is A
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