Question

A capillary tube having 1 mm and 2.5 mm as internal and external radii hangs vertically from the arm of a balance. The lower end of the tube just touches a liquid of surface tension 40 dyne/cm. If the angle of contact is zero, than the chang in weight due to surface tension.
a) 4.4×10^-4N
b) 8.8×10^-4N
c) 2.2×10^-4N
d) 3.3×10^-4N
solve & explain...​

Answer 1

Answer:

b) a) 4.4×10^-4N

Explanation:

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Answer 2

A capillary tube having 1 mm and 2.5 mm as internal and external radii hangs vertically from the arm of a balance. yrrr mujhe nhi khtm krna ye sb isiliye bol rha bcz I know agr communication gap hua hmare beech to fir shyd kbhi baat na ho payegi us app me mod se jldi baat kro yrrr plz nd jb phn tumhare pss hota h class k tym tb telegram download krke usme baat nhi kr skte kya baad me daily delete kr diya krenge.... nd apni I'd me thode tough qstn póst kro jinka koi answer nhi kr ske . The lower end of the tube just touches a liquid of surface tension 40 dyne/cm. If the angle of contact is zero, than the chang in weight due to surface tension.

a) 4.4×10^-4N