The cylinderical tube of a spray pump has radius `R`, one end of which has `n` fine holes, each of
Channel: Doubtnut
Date: 2020-01-19

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