# on 27-Oct-2018 (Sat)

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#### Annotation 3505699032332

 $$E=h\nu \$$,

Quantum mechanics - Wikipedia
duced by Arnold Sommerfeld .[11] This phase is known as old quantum theory . According to Planck, each energy element (E) is proportional to its frequency (ν): E = h ν {\displaystyle E=h\nu \ } <span>, [imagelink] [emptylink] Max Planck is considered the father of the quantum theory. where h is Planck's constant . Planck cautiously insisted that this was simply an aspect of the proces

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