Question

What is the dimensional formula for the coefficient of viscosity ??

Answer 1

I think this is your answer

Coefficient of viscosity "(η)= Fr/Av"

F= tangential Force,
A=Area,
r= distance between the layers,
v= velocity.

I hope it will help you

Answer 2

Coefficient of viscosity (η)= Fr/Av    ——- F= tangential Force, Area, r= distance between the layers, v= velocity.

Dimensional Formula of Force = M1L1T-2.
Dimensional Formula of Area= M0L2T0.
Dimensional Formula of distance= M0L1T0.
Dimensional Formula of velocity= M0L1T-1.

Putting these values in above equation we get,

[η]= [M1L1T-2][M0L1T0] / [M0L2T0] [M0L1T-1] = [M1L-1T-1]

Dimensional Formula of Coefficient of viscosity (η)=[M1L-1T-1]
SI unit of Coefficient of viscosity (η) is Pascal-second.

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