There are two types of OPTICAL FIBERS depending on the refractive index of core and cladding are available ; a. Step Index Optical Fiber b. Graded Index Optical Fiber In step-index optical fiber the core and cladding have a uniform refractive index. In the step […]
Attenuation in Optical Fiber The major transmission characteristics for an optical fiber: 1. Attenuation 2. Dispersion Attenuation: Signal attenuation (fiber dB loss explained) within the optical fibers, as with metallic conductors, is usually expressed in the logarithmic unit of the decibel. The decibel, which is used […]
Using a Diffraction Grating experiment in the Physics Lab, how to determine LASER (Light Amplification by Stimulated Emission of Radiation) wavelength . For this just take a LASER source, a grating (here grating have 15000 lines per inch), and a screen to observe the diffraction […]
Principle, Construction, and Working of He- Ne Gas LASER The He -Ne Gas Laser was the first continuous laser. It was invented by Javan, Bennett and Harriot in 1961. The laser has three components Laser medium: it is in the form of He-Ne gas mixture […]
Carbon dioxide (CO2) gas Laser The carbon dioxide laser (CO2 laser) was one of the earliest gas lasers invented by Kumar Patel of Bell Labs in 1964, is one of the most useful. Carbon dioxide gas lasers are the highest-power continuous wave lasers that are […]
I start this topic with the concept of absorption and emission first of all where one uses the Atomic Excitation or Electronic Excitation. What do you think when a photon strike on the electron? Does this result give of transfer of electron in a higher […]
Introduction Quincke’s Method In this video, I have discussed the calculation of the magnetic susceptibility by using Quincke’s experiment. What are the important points for the measurement of the magnetic susceptibility in Physics Lab in addition to the manual errors: These are; 1. the First […]
Diffraction Grating In this experiment, you determine the laser wavelength using a diffraction grating. To cover all the physical concepts associated with this experiment, I have created this quiz. You can attempt it and learn more about the experiment. In the video, you can watch […]
In this video, I have just try to explain why almost all the spiritual cities of India are situated on the bank especially right of the holy Indian rivers? All the ancient architecture of India is based on scientific facts, especially temples spiritual places across […]