Question
Question: A capillary tube made of glass is dipped into mercury. Then...
A capillary tube made of glass is dipped into mercury. Then
A
Mercury rises in the capillary tube
B
Mercury rises and flows out of the capillary tube
C
Mercury descends in the capillary tube
D
Mercury neither rises nor descends in the capillary tube
Answer
Mercury descends in the capillary tube
Explanation
Solution
The angle of contact of mercury with glass is obtuse. So it gets depressed below the liquid level outside.