Question

name any two physical quantity which have the same direction. can a quantity have unit but no dimension? ​

Answer 1

yes,plane angle have units but it has no dimensions..

Answer 2

A] Quantities having units, but no dimensions : Plane angle,angular displacement, solid angle.These physical quantities possess units but they does not possess dimensional formulas. B a physical quntatity neither having units nor dimensions are trigonometric ratios,strain , specific gravity etc.