1when the contact angle is less than 90,, then why the pressure just below yhe meniscus is lower than the atmospheric pressure
5 Answers
39http://en.wikipedia.org/wiki/Capillary_rise
its got a real clean explanation. if u still dont get tell me.
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.
1
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!!!!!!!!!!!!!!!!!!!