Properties Of Solids And Liquids Question 169

Question: Water rises in a capillary tube when its one end is dipped vertically in it, is 3 cm. If the surface tension of water is75×103N/m , then the diameter of capillary will be[MP PET 1989]

Options:

A) 0.1 mm

B) 0.5 mm

C) 1.0 mm

D) 2.0 mm

Show Answer

Answer:

Correct Answer: C

Solution:

T=rhρg275×103=3×102×r×103×9.82

r=12mm

D=2r=1 mm



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