Q. The fundamental unit, which has the same power in the dimensional formulae of surface tension and viscosity is
A) Mass
B) Length
C) Time
D) None of these
Explanation
[surface tension]=[$ML^{0}T^{- 2}$], [viscosity]=$\lbrack ML^{- 1}T^{- 1}\rbrack$. Clearly, mass has the same power in the two physical quantities.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.