the branch of physics concerned with quantum theory.
quantum mechanics and modern physics is not same.
modern physics (classical physics) laws not work in quantum mechanics.
Young double slits experiment, schodinger cat experiment is Most
important experiment in Quantum physics.
in Young double slit experiment says:
if you observe to Electron to the el Electron change his nature.
if You do not observe to electron to
the electron nature is not changes.
important Application of quantum theory
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(3)Light emitted diode
(4).quantum Engagement most important Experiment in quantum physics.