A capillary tube made of glass is dipped into mercury. Then - Vidyadip

MCQ

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
✓
Mercury descends in the capillary tube
D
Mercury neither rises nor descends in the capillary tube

✓

Answer

Correct option: C.

Mercury descends in the capillary tube

c
(c)The angle of contact of mercury with glass is obtuse. So it gets depressed below the liquid level outside.

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