Can a dimensionless quantity have units give example?

Yes, there are certain quantities which have units but they are dimensionless. For example, angle, loudness, solid angle.

Can a dimensional quantity have a unit?

Yes, a quantity can have unit but no dimension. These are Dimensionless Quantities, some of which have units. This would be things like angles, proportions, or ratios.

What does a dimensionless quantity have?

In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned, also known as a bare, pure, or scalar quantity or a quantity of dimension one, with a corresponding unit of measurement in the SI of the unit one (or 1), which is not explicitly shown.

Can a dimensionless quantity be Unitless?

So dimensionless physical quantities can have units. When considering unitless quantities it is impossible for them to have any dimension, since a unitless quantity does not have dimensions. So the answer to the question is option (B)- Never has a non-zero dimension.

Which physical quantity is dimensionless but having unit?

Dimensionless quantity is also known as the quantity of dimension with one as a quantity which is not related to any physical dimension. It is a pure number with dimension 1….Example Of Dimensionless Quantity With Unit.

Which concentration term is Unitless?

Molarity is measured as and the unit is Molar or moles per liter. Mole fraction is calculated as and it does not have units as it is a fraction. Mass Percent is calculated as and it is unitless as it is a ratio multiplied by 100.

Which of the following quantities is Unitless and dimensionless?

Refractive index is the property of a material to bend light when passing through the medium. It is taken as the ratio of the speed of light in vacuum to the speed of the light in the given medium. Since it is the ratio of speed, it has no dimension or units. Then clearly D is the answer.

Can a quantity have different dimensions in?

Incommensurable physical quantities are of different kinds and have different dimensions, and can not be directly compared to each other, no matter what units they are originally expressed in, e.g. meters and kilograms, seconds and kilograms, meters and seconds.

What is the difference between dimension and unit?

A dimension is a measure of a physical variable (without numerical values), while a unit is a way to assign a number or measurement to that dimension. For example, length is a dimension, but it is measured in units of feet (ft) or meters (m).

What are the units of molality?

The units of molality are m or mol/kg.