Discuss the relation between physics and technology.

Explanation

Physics is the fundamental of all technologies in the physical world. They are related to each other in every aspect. Physics tries to explain how the universe works and technology exploits that knowledge to build useful stuff. Also, physics experiments now use a lot of technology. For instance, physics explained how electrons are emitted from a heated cathode in a vacuum, and technology used that to make TV tubes. Physics explains the bandgap structure in semiconductors like doped silicon, and technology makes transistors and LEDs. Technology can’t make things at random a flying machine from a piece of soap and a stick of celery. Physics tells it to try a cloth envelope and a gas burner.
Broadly speaking, physics and technology both constitute science. Physics is the heart and technology is the body of science. The application of the principles of physics for practiced purposes becomes technology, e.g.,
(i) Aeroplanes fly on the basis of Bernoulli’s theorem.
(ii) Rocket propulsion is based on Newton’s second and third laws of motion.
(iii) Generation of power from nuclear reactors is based on the phenomena of controlled nuclear fission.
(iv) Lasers are based on the population inversion of electrons and so on.
Thus, we can say that to some extent science and technology is applied physics.