An ideal fluid flows through a pipe whose maximum and minimum diameters are 6.4 cm and 4.8 cm. Find the ratio vmin/vmax.
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Question

An ideal fluid flows through a pipe whose maximum and minimum diameters are 6.4 cm and 4.8 cm. Find the ratio vmin/vmax.

G1 Physics · Accepted Answer

Step 1: Continuity gives v∝1/A∝1/d². Step 2: vmin/vmax=(dmin/dmax)²=(4.8/6.4)²=(3/4)²=9/16. Final answer: D.