Water rises upto height 2h in a capillary tube of certain diameter. This capillary tube is replaced by similar tube of half the diameter. Now, the water will rise to the height of

Options

A. 4h
B. 3h
C. 2h
D. h

Answer

A

Explanation

According to Jurin's law rise in capillary is inversely proportional to the radius of capillary.
or `hprop(1)/(r)` orr `(h_(2))/(h_(1))=(r_(1))/(r_(2))=(d)/(d_(2))`
Given `d_(2)=(d_(1))/(2)`
`therefore(h_(2))/(h_(1))=(d_(1))/(d_(1)//2)=2` or `h_(2)=2h_(1)=4h`