The cylindrical 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 :

• Correct answer
  A

  $\frac{V{R}^2}{n{r}^2}$
• B

  $\frac{V{R}^2}{n^3{r}^2}$
• C

  $\frac{V^{2}R}{nr}$
• D

  $\frac{V{R}^2}{n^2{r}^2}$

Hence, the correct answer is option: 'A'.