Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

The only possible dimensionless group that combines velocity $V_1$ body size $L$,fluid density $\rho$ and surface tension coefficient $\sigma$ is

$\begin{array}{1 1}(A)\;\large\frac{L\rho \sigma}{V}\\(B)\;\large\frac{\rho V L^2}{\sigma}\\(C)\;\large\frac{\sigma L V^2}{\rho}\\(D)\;\large\frac{\rho LV^2}{\sigma}\end{array} $

Can you answer this question?

1 Answer

0 votes
The dimensions of the physical quantity are $V=\large\frac{L}{t},$$L=L,\rho=\large\frac{m}{L^3}$ and $\sigma=\large\frac{m}{t^2}$
Put in option (d) & get it is dimensionless.
Hence (D) is the correct answer.
answered May 9, 2014 by sreemathi.v

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, AIPMT Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App