The Branch of Physics that deals with highly energetic ions is called _?
Correct answer: D. Plasma physics
- A. Elementary physics
- B. Article physics
- C. Ionic physics
- D. Plasma physics
Explanation
Option A : Elementary physics refers to the fundamental principles and laws of physics that describe the behaviour of matter and energy in our everyday world. It includes the study of mechanics, thermodynamics, electromagnetism, optics, and quantum mechanics, among other topics. Elementary physics is the foundation for more advanced physics and engineering courses, and it is essential for understanding the natural world around us. Option C : Ionic physics is a branch of physics that deals with the behaviour of ions, which are atoms or molecules that have lost or gained one or more electrons and therefore have a net electrical charge. Ionic physics is concerned with the interactions between ions and other charged particles, such as electrons and other ions, and the effects of these interactions on the physical properties of matter. This includes the study of ionic bonding, electrostatic forces, and the properties of ionic compounds and solutions. Ionic physics is important in many fields, including chemistry, materials science, and biochemistry, as it helps to explain thebehaviourr of charged particles in these systems.Option : D Plasma ('moldable substance') is one of four fundamental states of matter, characterized by the presence of a significant portion of charged particles in any combination of ions or electrons. It is the most abundant form of ordinary matter in the universe, being mostly associated with stars, including the Sun. Extending to the rarefied intracluster medium and possibly to intergalactic regions, plasma can be artificially generated by heating a neutral gas or subjecting it to a strong electromagnetic field.
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About Quantum Theory and Radiation
Quantum theory treats electromagnetic radiation as packets of energy called photons, with energy proportional to frequency through E equals hf. The topic covers Planck's hypothesis, photon momentum, the photoelectric effect, threshold frequency, work function and wave particle duality, distinguishing quantised energy exchange from classical continuous radiation.
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