Q Name some of the important phenomena of physics that have revolutionized the life of modern man.
Some of the important phenomena of physics that have revolutionized the life of modern man are as under:
1. Electromagnetic Induction
The induction of an electromotive force between the ends of a conductor by change in relation to an external magnetic field is called Electromagnetic Induction. This phenomenon is used in generators, transformers, microphones and many other devices. It has given us electricity which has brought a revolution in life
2. Thermionic Emission
The emission of electrons from the surface of a heated metal or metal oxide is called thermionic emission. This phenomenon has given us a very glamorous branch of physics called “Electronics which has brought a revolution in almost every aspect of human life. Radio, T.V., V.C.R, Video games, X-rays and electronic equipment used in modern warfare.
3. Nuclear Energy
This energy has enabled us to produce cheap electric power in large scale in Nuclear Reactors.
4. Thermodynamics
This phenomena has given us Automobile Technology.
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