Question

what is universal constant?​

Answer 1

Explanation:

A physical constant, sometimes fundamental physical constant or universal constant, is a physical quantity that is generally believed to be both universal in nature and have constant value in time. ... Since May 2019, all of the SI base units have been defined in terms of physical constants.

Answer 2

$\huge \color{lime}Answer :-$

physical constant of wide application and frequent occurrence in physical formulas the speed of light, c, the electronic charge, e, and the Planck constant, h, are universal constants