The basis of any problem or concept in physics relies on the actual sense of measurement which is specified in Notes of Physics Class 11 Chapter 2. The idea of measurement is a comparison of the physical property of an object with a standard. Class 11 Physics Chapter 2 Notes gives a comprehensive knowledge about all sorts of measurements, units, dimensions and errors encountered during measurement. To measure a physical quantity, one must know how many times a standard measure of that physical quantity is present in the object that is being measured. Edutyee’s Units and Measurements Class 11 Notes provides a detailed description of standard international units used globally for an accurate representation of any quantity.