Question

what is quantum mechanics and what is it's relation with our world​

Answer 1

Answer:

the branch of mechanics that deals with the mathematical description of the motion and interaction of the subatomic particles incorporating the concepts of quantization of energy, the uncertainty principle and the correspondence principle.

It is related to our world in such a way that it isthebody of scientific laws that describe the vacky behavior of photons , electrons and the other particles that make up the universe

Answer 2

the branch of mechanics that deals with the mathematical description of the motion and interaction of subatomic particles, incorporating the concepts of quantization of energy, wave–particle duality, the uncertainty principle, and the correspondence principle.