## Question

The cylindrical tube of a spray pump has a radius *R*, one end of which has*n* fine holes, each of radius *r*. If the speed of flow of the liquid in the tube is *V*, the speed of ejection of the liquid through the holes is

### Solution

Cross-sectional area of tube . Cross-sectional area of each hole. Therefore, cross-sectional area of *n* holes . If *v* is the speed of ejection of the liquid through the holes, then from the continuity of flow, we have

*av* = *AV *

#### SIMILAR QUESTIONS

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