Triode Triode

Triode

What is Triode? 1) It is a vacuum tube invented by Lee De Forest. 2) It has three elements a)cathode K , b)Grid G and c) Plate(p) Cathod...
Laplace’s correction Velocity of sound in gases Velocity of sound in gases | Laplace’s correction

Velocity of sound in gases | Laplace’s correction

Newton’s formula for the velocity of sound in gases Newton was of the opinion that longitudinal waves travel in a gaseous medium, the cha...
Wave optics Wave optics

Wave optics

What is wave optics? Web optics is based on wave theory of light put forward by Huyghen. According to wave theory, light is a form of en...
Web effects

Web effects

Lissajous Figures When two simple harmonic waves having vibrations in mutually perpendicular directions superimpose on each other then th...
Waves Waves

Waves

Waves 1) Particles of the medium vibrate simple harmonically about their mean position. 2) Particles do not leave their mean position an...
Work Work

Work

Work 1. The meaning of work in our daily life is quite different than that in physics e.g., we may exert a large force on the wall, but i...
x-rays x-rays

x-rays

X-rays X-rays defined as: x-rays 1) X-rays were discovered by Roentgen in 1895. These rays were also called as Roentgen rays. 2) ...