Properties Of Solids And Liquids Question 176
Question: Water rises upto a height h in a capillary on the surface of earth in stationary condition. Value of h increases if this tube is taken [RPET 2000]
Options:
A) On sun
B)On poles
C) In a lift going upward with acceleration
D) In a lift going downward with acceleration
Show Answer
Answer:
Correct Answer: D
Solution:
If lift moves downward with some acceleration theneffective g decreases, so h increases. As $ h=\frac{2T\cos \theta }{rdg} $ $ h\propto \frac{1}{g} $
