Question

what is meant by dimensional constant??

Answer 1

While its numerical value can be defined at will by the choice of units, the speed of light itself is a single physical constant. Any ratio between physical constants of the samedimensions results in a dimensionless physical constant, for example, the proton-to-electron mass ratio.

Answer 2

Answer:

A physical quantity whose numerical value depends on the units chosen for fundamental quantities but not on the system being considered

For example:- Gravitation constant

Hope it help you on your study.