33. Radius of a capillary is
2×10-3m . A liquid of weight 6.28 x 10-4 N may remain in the capillary then the surface tension of liquid will be
(a) 5 x 10-3 N/m
(b) 5 x 10-2 N/m
(c) 5 N/m
(d) 50 N/m
Ans. b
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a