When describing collective properties of macroscopic physical systems, microscopic fluctuations are typically averaged out, leaving a description of the typical behavior of the systems. While this ...

Units and Measurements Class 11 Revision Notes: The Units and Measurements chapter in CBSE Class 11 deals with the concepts of physical quantities, units, systems of units, and measurements. The ...

Class 11 Physics chapter wise notes based on Chapter 1, Physical World of 11th Physics NCERT textbook are available here. These notes are as per latest CBSE Class 11 Physics Syllabus 2017-18 and ...

Classical (as opposed to quantum) physics rests on the assumption that all physical quantities have well-defined values simultaneously. Relativity is based on clear-cut physical statements: the speed ...