Can there be a physical quantity, which has no units and no dimensions?

(a) Can there be a phusical quantity which has no unit and dimensions ? (b) Can a physical quantity have unit without having dimensions?

Give a physical quantity with a unit and no dimension.

Give an example of a physical quantity which has a unit but no dimensions.

Give an example of a physical quantity which has neither unit nor dimensions.

Give an example of (a) a physical quantity which has a unit but no dimensions (b) a physical quantity which has neither unit nor dimensions (c) a constant which has a unit (d) a constant which has no unit.

Give an example of (a) a physical quantiy which has a unit but no dimensions. (b) a physical quantity which has neither unit no dimensions. (c ) a constant which has a unit. (d) a constant which has no unit.

Give an example of (a) a physical quantiy which has a unit but no dimensions. (b) a physical quantity which has neither unit no dimensions. (c ) a constant which has a unit. (d) a constant which has no unit.

Which of the following physical quantities has a unit but no dimensions?