How do youclassifythe physical quantities on thebasis ofdimension?

1.	How do youclassifythe physical quantities on thebasis ofdimension?
Answer» Solution :(1) Dimensional variables: Physical quantities, which POSSESS dimensions and have variable values are called dimensional variables. EXAMPLES are length, velocity, and acceleration etc. (2) Dimensionless variables: Physical quantities which have no dimensions, but have variable values are called dimensionless variables. Examples are specific gravity, strain, REFRACTIVE index etc. (3) Dimensional Constant: Physical quantities which possess dimensions and have constant values are called dimensional constants. Examples are Gravitational constant, Planck.s constant etc. (4) Dimensionless Constant: Quantities which have constant values and ALSO have no dimensions are called dimensionless constants. Examples are `pi` , e, numbers etc.

Discussion