Question

Which among the following is not a fundamental dimension?

(a) [L]

(b) [M]

(c) [T]

(d) [kg]

I had been asked this question in quiz.

I'd like to ask this question from Dimensional Homogenity topic in portion Dimensional and Model Analysis of Fluid Mechanics

Answer 1

Right choice is (d) [kg]

The best I can explain: It is essential to adopt a consistent dimensional quantity. Thus, we adopt a basic form to categorize dimension quantities. For this purpose, we adopt a comparison of the quantities in SI or MKS units.