"Dimensionless" means it doesn't have a unit.
No. "Dimensionless" means there are NO units involved.
Strain is dimensionless quantity because strain is the ratio of the same quantities like change in length/original length,,change in volume/original volume. e.g tensile strain=(change in length)/(original length)=m/m (S.I unit) so its a dimensionless quantity.
No, "dimensionless" means, precisely, that there are no units.
A. dimensionless
If a quantity is "dimensionless", that means it has no units, and it's just a number.
energy/mass example: calories/gram
"Dimensionless" means it doesn't have a unit.
the dimensionless numbers have the definition as that of dimensionless groups, and have all the properties which dimensionless groups have.
No. "Dimensionless" means there are NO units involved.
it's an unitless quantity.......
it's an unitless quantity.......
infinity
Yes. Conversion factors will generally be dimensionless constants.
Strain is dimensionless quantity because strain is the ratio of the same quantities like change in length/original length,,change in volume/original volume. e.g tensile strain=(change in length)/(original length)=m/m (S.I unit) so its a dimensionless quantity.
Yes, the magnitude of a vector is a scalar.
coefficientThe amount of friction divided by the weight of an object forms a dimensionless number called the coefficient of friction.