Question

The dimensions of coefficient of viscosity are ______.

विकल्प

• [ML^-1 T^-2]

• [M^-1L T^-2]

• [MLT^-2]

• [ML^-1 T^-1]

Answer 1

The dimensions of coefficient of viscosity are [ML^-1 T^-1]

Explanation:

The SI units for are Newton-seconds per square metre (Ns. m^-2) or Pascal-seconds.

The viscosity coefficient,η, is measured in centimeter - gram - seconds, or CGS units, which are comparable to Poise (dyne-sec/cm²).

precisely 0.1 Pa·s corresponds to one Poise.

Kilogram per metre per second, or kg m^-1 s^-1, is the meter-kilogram-second, or MKS, unit.

Given that the coefficient of viscosity formula is provided by,

η = F . d/ A .ⅴ = [ML T^-2 ] x [L] x [L²]^-1 x [L T^-1]^-1 = [M¹ L^-1 T^-1]