Properties Of Solids And Liquids Question 183
The surface tension for pure water in a capillary tube experiment is 72.8 mN/m [MH CET 2002]
Options:
A) $ \frac{\rho g}{2hr} $
B) $ \frac{2}{hr\rho g} $
C) $ \frac{r\rho g}{2h} $
D) $ \frac{hr\rho g}{2} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ T=\frac{rhdg}{2\cos \theta }. $ For pure water$ \theta =0^{o} $ so $ T=\frac{rhdg}{2} $
BETA
