Question

Which is not a basic physical quantity?​

Answer 1

Explanation:

Basic quantities are undefined (unknown), while the derived quantities are defined in terms of the basic. The basic quantities are length, time, mass, charge, temperature, and the amount of substance. Although the basic quantities are undefined, the ratio of basic quantities of the same type is defined.

Answer 2

Answer:

the basic quantities are undefined,t he ratio of basic quantities of the same type is defined.