Question

what is called S.I unit ?​

Answer 1

The International System of Units(abbreviated SI from systeme internationale , the French version of the name) is a scientific method of expressing the magnitudes or quantities of important natural phenomena. There are seven baseunits in the system, from which otherunits are derived.

Answer 2

S. I unit is any standard unit of measure used to measure any quantity for example S.I unit of length is metres