S.I unit of kinematic viscosity

Q.  What is the S.I unit of kinematic viscosity?
- Published on 23 Sep 15

a. N-s / m2
b. m2 / s
c. N-s m2
d. None of the above

ANSWER: m2 / s

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    Discussion

  • Sravanthi   -Posted on 05 Oct 15
    • Ratio of absolute or dynamic viscosity to mass density of fluid is known as kinematic viscosity.

    • Kinematic viscosity (ν) = absolute viscosity / mass density
    ν = μ/ρ
    • μ = N-s / m2 is converted into kg-m / s2 - s / m2 & ρ = kg / m3

    • Therefore, kinematic viscosity (ν) = m2 / s

    • C.G.S. unit of kinematic viscosity – cm2 / s

    • cm2 / s is known as stoke.

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