Total Internal Reflection
Total Internal Reflection It is the complete reflection of light ray inside an optically denser medium. Critical Angle The angle of incidence in an optically denser medium for which the angle of refraction is 90 degree.
Author: Salman Ahmed
Refraction of Light
Refraction of Light Bending of light when it enters from one optical medium to another is called refraction of light. Light travels with different speeds in different transparent medium.Its speed in air is 3×108 m/s and 2×108 m/s in glass.…
Reflection of Light
Reflection of Light After striking with a surface, Return of light, Sound, Wave or any body is called reflection. Light rays travel in straight line.In physics, we use straight lines with arrows to represent paths of light.The arrows represent the…
OTDR Optical Time Domain Reflectometer
OTDR | Optical Time Domain Reflectometer OTDR Optical Time Domain Reflectometer is used to check the performance of fiber optic link and detect problems. It is used to create a virtual picture of a fiber optic cable route. It is…
How Electric Fuse / Circuit Breaker work.
Satellite Communication
Satellite Satellite is an object that orbits or rotate around another object in a particular path Orbit. Our solar system is a good example. How satellite stable in orbit? A satellite remains in orbit because the centrifugal force caused by…
Artificial Intelligence
Intelligence Intelligence is the ability to think, learn and Understand. It has four steps, Observation Think (Compare) Understand. Response Artificial Intelligence If intelligence is produced artificially in machines called Artificial Intelligence.
Infrared IR
Discovery of Infrared In 1800, William Herschel conducted an experiment measuring the difference in temperature between the colors in the visible spectrum. Infrared is a section of invisible light on the electromagnetic spectrum. It’s a form of radiant heat that can…
Twisted Pair Cable
Twisted Pair Cable Guided metallic transmission media. Twisted pair cable is a form of wiring in which two conductors are twisted together for the purposes of canceling out electromagnetic interference (EMI) from external sources and crosstalk from neighboring conductors. Unshielded…
ISM Frequency Band
ISM Frequency Band The ITU (International Telecommunication Union) had originally reserved a portion of the RF spectrum globally for industrial, scientific and medical applications. Such as process heating, microwave oven, and medical diathermy equipment etc. The main feature of the…