1liquid rises or falls down basically due to two interactions . cohesive ans adhesive falling or rising depends on the magnitude of these forces and their resultant.
5 Answers
39http://en.wikipedia.org/wiki/Capillary_rise
its got a real clean explanation. if u still dont get tell me.
1
1when the contact angle is less than 90,, then why the pressure just below yhe meniscus is lower than the atmospheric pressure
3see the meniscus it behaves like an air bubble.........now try to reason it out... if u still cant do it tellme ill help u out!!!!!!!!!!!!!!!!!!!