Question

Can there be a physcial quantity which have no unit and no dimension?​

Answer 1

Explanation:

Yes their are many

Some are

Trigonometric ratios,

logarithmic functions,

exponential functions,

coefficient of friction,

strain

poisson's ratio

, specific gravity,

refractive index,

Relative permittivity

, Relative permeability.

Answer 2

Answer:

physical quantities neither having units nor dimensions are trignometric ratios, strain specific gravity etc.