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Flame SCF 18 Near Chawla Lights Ph-7 Mohali 9888949978

6. A liquid is coming out from a vertical tube. The relation between the weight of the drop W, surface tension of the liquid T and radius of the tube r is given by, if the angle of contact is zero

(a) w= πr²T

(b) w= 2πrT

(c)w= 2πr²T

(d) w= (3/4)πr³ T

Ans. b

5/5 - (1 vote)

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