Physics Vidyapith ✍️

Description of Application of Lasers: There are widespread applications of lasers in various disciplines such as medicine, industries, astronomy, communication, chemistry, etc. Some of the laser applications are given below in short: 1.) Lasers in Medicine:  Some of the applications of lasers in medical care such as in: Controlling haemorrhage. Treatment of the liver and lungs and for the elimination of moles and tumours developing on the skin tissues. Therapy and stomatology. Microsurgery for virtually painless treatment. Ophthalmology to reattach a detached retina. Penetration of blood vessels in the eye for treating glaucoma. Treatment of cancer. Dentistry etc. 2.) Lasers in Industries: Some of the industrial applications of lasers are as follows: Testing the quality of optical components such as lenses, prism, gratings etc. More accurate measurement of the sizes of physical quantities, precision length measurement. Gel

Description of Significance of Compton effect: There are the following significance of the Compton effect→ The greatest significance of the Compton effect is that is to provide final and deciding proof for Planck-Einstein's visualization of the quantum nature of radiation. The particle nature of light was established after the discovery of the Compton effect. The discovery of the Compton effect led to the formulation of quantum mechanics by W. Heisenberg and E. Schrodinger and provided the basis for the beginning of the theory of quantum electrodynamics. It is most important to radiobiology, as it happens to be the most probable interaction of high energy x-ray with atomic nuclei in living beings and is applied in radiation therapy. It is used to prove the wave function of electrons in the matter in the momentum representation. It is the most effective in Gamma spectroscopy that gives rise to Compton edge, as it is possible for gamma rays

Coulomb’s Law: This law was first published by French physicist Charles-Augustin de Coulomb in the year 1785. According to Coulomb’s Law- The electric force acting between the two point charges is directly proportional to the product of magnitude of the two charges and inversely proportional to square of the distance between these two charges. The electric force always acts along the line joining the charges . Coulomb's force between the two charges Let us consider two positive charges whose magnitude $q_{1}$ and $q_{2}$ are placed at a distance $‘r’$. According to Coulomb’s Law ( magnitude only ): $F\propto q_{1}q_{2} \qquad(1)$ $F\propto \frac{1}{r^{2}} \qquad(2)$ From equation$(1)$ and equation$(2)$, we can write as: $F\propto \frac{q_{1}q_{2}}{r^{2}} \qquad(3)$ $F=\frac{1}{4\pi \varepsilon K} \frac{q_{1}q_{2}}{r^{2}} \qquad(4)$ Where $\epsilo