Question

what is quantum physics?

Answer 1

hyy...

Quantum physics is the study of the behaviour of matter and energy at the molecular, atomic, nuclear, and even smaller microscopic levels. 

Answer 2

ANSWER -

Quantum physics underlies how atoms work, and so why chemistry and biology work as they do. You, me and the gatepost – at some level at least, we’re all dancing to the quantum tune. If you want to explain how electrons move through a computer chip, how photons of light get turned to electrical current in a solar panel or amplify themselves in a laser, or even just how the sun keeps burning, you’ll need to use quantum physics.