sowmya2010
Dec23-09, 11:46 PM
1. The problem statement, all variables and given/known data
A capillary is dipped in water vessel kept on a freely falling lift, then
a)water will not rise in the tube
b)water will rise to the maximum possible height of the tube
2. Relevant equations
W=2\pir S cos\theta
or h=(2S cos \theta)/(r\rhog)
3. The attempt at a solution
as this is the case of free fall g tends to 0 hence h tends to infinity hence the option (b)
but it might also mean that cos \theta=0, i.e, the water doesn't rise at all, hence the option (a)
which logic is correct?
A capillary is dipped in water vessel kept on a freely falling lift, then
a)water will not rise in the tube
b)water will rise to the maximum possible height of the tube
2. Relevant equations
W=2\pir S cos\theta
or h=(2S cos \theta)/(r\rhog)
3. The attempt at a solution
as this is the case of free fall g tends to 0 hence h tends to infinity hence the option (b)
but it might also mean that cos \theta=0, i.e, the water doesn't rise at all, hence the option (a)
which logic is correct?