Question

what is quantum physics used for?

Answer 1

1. Quantum physics is used to study matter and energy at the most fundamental level.
2. The dual behavior of matter indicates that particle displays both particles as well wave nature.
3. It aims to uncover the properties and behaviors of the very building blocks of nature.
4. It attempts to explain the properties of atoms and molecules and their fundamental particles.
5. The fundamental particles of matter such as protons, neutrons, electrons, and quarks are explained here.
6. In 1900 the German theoretical physicist Max Planck made a bold suggestion.
7. He assumed that the radiation energy is emitted, not continuously,
8. But rather in discrete packets called quanta.
9. The energy of the quantum is related to the frequency is
   $E=hf$
   where $E$= energy $h$ = planks constant ($6.62\times {10}^{-34}js$) $f$= frequency
10. The light which you get from tubes or those curly bulbs is the result of a quantum phenomenon.
11. The whole computer world is based on the principal of quantum physics.