Question

What are the base quantities ofDimensional formula?

(a) Massand length only

(b) Mass and second only

(c) Length and second only

(d) Mass, length and second

The question was asked in my homework.

This intriguing question originated from Dimensions and Units in portion Introduction & Unit Systems of Food Processing Unit Operations

Answer 1

Right answer is (d) Mass, length and second

For explanation I would say: The base quantities of Dimensional formula are mass [M], length [L], Second [S]. The dimensional formula is based on the relationships between physical quantities involved, which is expressed in terms of three fundamental quantities known as mass, length and second.