Question

The surface tension of a liquid in CGS system is 45 dyne cm^(-1). Its value in SI system is

Answer 1

Explanation:

1dyne=10−5 N

1cm=10−2 m 

∴cmdyne=10−2m10−5N=m10−3N

∴cm45dyne=m45×10−3N=0.045N/m