Correct: it is a dimensionless number.
A dimensionless number has no units. The units of all variables that compose the dimensionless number (product or ratio) must cancel each other.
Yes. Conversion factors will generally be dimensionless constants.
infinity
No, but an angle is dimensionless.
the dimensionless numbers have the definition as that of dimensionless groups, and have all the properties which dimensionless groups have.
Angles are not dimensionless.
KR and KK are not dimensionless.
"Dimensionless" means it doesn't have a unit.
Correct: it is a dimensionless number.
No. "Dimensionless" means there are NO units involved.
A dimensionless number has no units. The units of all variables that compose the dimensionless number (product or ratio) must cancel each other.
If a quantity is "dimensionless", that means it has no units, and it's just a number.
Yes. Conversion factors will generally be dimensionless constants.
energy/mass example: calories/gram
Yes.
It is a dimensionless parameter since its just a ratio between two quantities of same unit.