The fundamental unit which has same power in the dimensional formula of surface tension and viscosity is
Mass
Length
Time
None
As we learnt in
Surface tension, surface energy -
-
Tensor Quantity -
Which are not completly specifed even by magnitude and direction.
- wherein
i.e. the moment of inertia, co-efficient of viscosity
Surface tension [M L0T-2]
Viscosity [M L-1T-1]
Clearly mass has the same power in two physical quantity.
Option 1)
Mass
Option is correct
Option 2)
Length
Option is incorrect
Option 3)
Time
Option is incorrect
Option 4)
None
Option is incorrect