Question

Who is constant unit? Any example

Answer 1

Answer:

The term "physical constant" refers to the physical quantity, and not to the numerical value within any given system of units. ... The fine-structure constant α is the best known dimensionless fundamental physical constant. It is the value of the elementary charge squared expressed in Planck units.

Answer 2

Answer:

I think it's not correct question plz change this question and rewrite the question