Question

Radius of a capillary is 2×10−3m. A liquid of weight 6.28×10−4n may remain in the capillary. Then the surface tension of liquid will be

Answer 1

Answer:

5*10^-2 N/m

Explanation:

Since, Force = T×2πR

 So,

    6.28×10  

−4

=T×2πR

    T=  

2×π×2×10  

−3

 

6.28×10  

−4

 

​  

 

    T=5×10  

−2

N/m