What is the excess of pressure inside the spherical drop of water of radius 1mm. Surface tension of water is 70xx10^(-3)N//m.

What is the excess of pressure inside the spherical drop of water of r

1.	What is the excess of pressure inside the spherical drop of water of radius 1mm. Surface tension of water is 70xx10^(-3)N//m.
Answer» <P> SOLUTION :Radius of water drop, `R=1mm=1xx10^(-3)m` SURFACE tension of water, `S=70xx10^(-3)Nm^(-1)` EXCESS pressure inside the drop, `P=(2S)/(r)=(2xx70xx10^(-3))/(1xx10^(-3))=140Nm^(-2)`.