Question

what is constant In. physics .

Answer 1

A physical constant, sometimes fundamental physical constant, is a physical quantity that is generally believed to be both universal in nature and have constant value in time. It is contrasted with a mathematical constant, which has a fixed numerical value, but does not directly involve any physical measurement.

Answer 2

It refers to a physical quantity that is believed to be both universal in nature and have a fixed value in time.
Hopeit helps...
Plz mark brainliest if u wish to do so.....