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The team for the International Physics Olympiad is selected based on a rigorous procedure of theory and practical examinations (Normally, 3 each) at OCSC Physics.60% (240 marks) weightage is given to the theory exam, and 40% (160 marks) to the practical one, akin to that at the International Physics Olympiad. The difficulty level is similar to ...
The company was founded by Alakh Panday in 2016 as a YouTube channel aimed at teaching the physics curriculum for the Joint Entrance Examinations (JEE). In 2020, Panday, along with his cofounder Prateek Maheshwari created the Physics Wallah app, which allowed students to access courses related to the National Eligibility cum Entrance Test (NEET ...
Thermal physics, generally speaking, is the study of the statistical nature of physical systems from an energetic perspective. Starting with the basics of heat and temperature, thermal physics analyzes the first law of thermodynamics and second law of thermodynamics from the statistical perspective, in terms of the number of microstates corresponding to a given macrostate.
For quasi-static and reversible processes, the first law of thermodynamics is: d U = δ Q − δ W {\displaystyle dU=\delta Q-\delta W} where δQ is the heat supplied to the system and δW is the work done by the system.
The first and second law of thermodynamics are the most fundamental equations of thermodynamics. They may be combined into what is known as fundamental thermodynamic relation which describes all of the changes of thermodynamic state functions of a system of uniform temperature and pressure.
In addition to their use in thermodynamics, they are important fundamental laws of physics in general and are applicable in other natural sciences. Traditionally, thermodynamics has recognized three fundamental laws, simply named by an ordinal identification, the first law, the second law, and the third law.
The existence of such states is a basic postulate of classical thermodynamics. [4] [5] This postulate is sometimes, but not often, called the minus first law of thermodynamics. [6] A notable exception exists for isolated quantum systems which are many-body localized and which never reach internal thermal equilibrium.
In physics and engineering contexts, especially in the context of diffusion through a medium, it is more common to fix a Cartesian coordinate system and then to consider the specific case of a function u(x, y, z, t) of three spatial variables (x, y, z) and time variable t. One then says that u is a solution of the heat equation if