Dimensionless Quantities
Dimensionless quantities are the physical quantities which have no dimension or zero dimension. Its numeric value or magnitude is same in all system of units.
Examples : The examples of dimensionless quantities are as follows:
- Angle
- Solid angle
- Relative density
- Specific gravity
Units and Dimensions
Units and Dimensions is a fundamental and essential topic in Physics. For the measurement of a physical quantity, Unit plays a vital role. Unit provides a complete idea about the measurement of a physical quantity. Dimension is a measure of the size or extent of a particular quantity.
In this article, we will learn Units and Dimensions related all details including definition, fundamental and derived units, system of units, List of Units of physical quantities, Dimension formula, List of physical quantities and their dimensions, etc.
Table of Content
- What are Units?
- Fundamental and Derived Units
- What are Dimensions?
- Dimensional Formula
- Dimensionless Quantities