SSC JE Mechanical Engineering 2018 Set 2 Paper

Question : 168 of 200

Marks: +1, -0

The capillary rise at 20 degree celsius in a clean glass tube of 1 mm bore containing water is approximately

Solution:

At 20°C surface tension of water = 0.0736 N/m
Capillary rise

h={4×0.736}/{9.81×10^3×10^{-3}}

= .030 m = 30 mm

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