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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

(5)

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