Question

Q. What is Planck's constant ?​

Answer 1

Explanation:

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Answer 2

In 1900 when Max Planch published a theory of black body radiation; i.e. a theory of thermal radiation in equilibrium with a perfectly absorbing body. Planch provided an explanation of the observed properties of black body radiation by assuming that atoms emit and absorb discrete quanta of radiation with energy E = hv, where V is frequency of radiation and H is a fundamental constant of nature with the value

$h \: = \: 6.626 \times {10}^{ - 34} \: J \: s$