The pressure difference across the surface of a spherical water drop of radius 1 mm and surface tension 0.07 N/m is
A. 28 Pa
B. 35 Pa
C. 140 Pa
D. 280 Pa.
Answer:C
The pressure difference across the surface of a spherical water drop of radius 1 mm and surface tension 0.07 N/m is
A. 28 Pa B. 35 Pa C. 140 Pa D. 280 Pa.