question_answer

If the length of tube is less and cannot accommodate the maximum rise of liquid, then

A) Liquid will form fountain

B) Liquid will not rise

C) The meniscus will adjust itself so that the water does not spill

D) None of these

Correct Answer: C

Solution :

If the length of the tube h' is less h, it is found that the liquid does not overflow. In a tube of insufficient length, the liquid rises upto the top of the tube and increases the radius of curvature of its meniscus to a value R', so that

i.e., smaller the length (h') of the tube, greater will be the radius of curvature (R') of the meniscus but the liquid will never overflow.