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When one end of the capillary is dipped
in water, the height of water column is
'h'. The upward force of 105 dyne due to
surface tension is balanced by the force
due to the weight of water column. The
inner circumference of the capillary is
(Surface tension of water = 7 x 10-²N/m)
A) 1.5 mg B) 2 cmlinovic
C) 2.5 cm
opD) 3 cm (Chap-6)
1

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