Quantum Theory
THE BIRTH OF PLANCK:s CONSTANT
Submitted that energy was emitted or absorbed from time to time in small packets of energy of a deinite size and that the size of this energy packet was directly proportional to the radiation;s ffrequency.
Suggested that the energy states of a physical system could be discrete
the classical physics assumed that radiation 'oozed' in and outof the black body
the results from the black body experiment did not match the calculation
Used statistical physics applied to case of the black body
Maxwell and Bolzmann concluded that they could reliably predict the overall behaviour of a complex system
Stated the black body problem
how does the intensity of the electromagnetic radiation emitted by a black body depend on the frequency of the radiation and the temperature of the body?
The UltraVioletCatastrophe
in 1897 was the first to discove electrons but his model of the atom electrons neutrons and protons was unsuccessful in explaning balmers results
Tried to understand Balmer;s result and it was a faliur
Modified Balmer formula to include the other series of lines to produce Rydberg formula
Discovered that the spectrum of Hydrogen, could be discribed by a simple mathematical formula
attempt to detect aether but there is no aether :). it was an important step to develop of theory of relativity
Michelson and morley 1880
determined that all electromagmetism was linked and that the speed of light could be determined
Light had wavelike characteristics and described interference phenomena
After this until late 19th century mechanics became a discipline capable of describing the motionof particles in a clear and deterministic way.
3 law's of motion of Newton
Classical Quantum mechanics
