A laboratory adopts the following unconventional base units: Length , Mass (= kg), Time
PHYSICS · Multi-part · CBSE · Physics · Units and Measurements · Units and Measurements
Problem
A laboratory adopts the following unconventional base units:
Length L^=1μm, Mass M^=1tonne (=103 kg), Time T^=1s.
Using these base units, answer the questions that follow.
(a) Derive the factor that converts the laboratory’s unit of dynamic viscosity (dimension [ML−1T−1]) to the SI unit pascal–second.
(b) The viscosity of a certain oil is 0.900 Pa s in SI. Express this value in the laboratory’s unit.
(c) Comment briefly on whether the laboratory’s viscosity unit is more suitable or less suitable than the pascal–second for expressing ordinary fluid viscosities.