Quantum mechanics deals the objects at microscopic level . means in QUANTUM MECHANICS we study the particles which are of very small size i.e which are of atomic size where lengths are of the orders of about one angstroms to fermis .Quantum mechanics was found successful in giving satisfactory explanation to many observed facts related to micro objects .
The development of quantum mechanics took place in two stages -
The development of quantum mechanics took place in two stages -
First stage - This stage began with the Max Planck's hypothesis .
According to this hypothesis the radiation is emitted or absorbed by matter in in discrete packets or quanta each of energy hv , where v is the frequency of radiation and h is Planck's constant .
Second stage - This stage began with Erwin Schrodinger .
This mechanics combines the earlier ideas of classical wave theory with Louis de -Broglie's wave particle duality relationship .
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