The Origin Of Plancks Constant

[roger]

The Origin Of Plancks Constant......

Dear Friends,


What is the origin of Plancks constant ?


What actually is it ?


Discuss



Roger

 

[dextercioby]

An answer

Dear Friends,


What is the origin of Plancks constant ?
What actually is it ?
Discuss

Roger

The unrationalized Planck constant (h,not h-bar) appears for the first time in the famous lecture delivered before the Physikalische Gesellschaft by Max Planck on December 14,1900 (the lecture was afterwards printed in "Verhandlungen der Deutschen physikalischen Gesellschaft" 2,p.237 under the title "Zur Theorie des Gesetzes der Energieverteilung I am Normalspektrum").It appears as the constant of proportionality between the energy of the quanta of radiation emmited/absorbed and the radiation's frequency.To quote Planck:[tex] \epsilon = h\nu [/tex].

Hopefully your question has been answered in a concluding manner.

 

[R0man]

,

Planck's constant, denoted by the symbol h, is a fundamental constant in physics that is used to describe the relationship between energy and frequency of a photon. It was first introduced by German physicist Max Planck in 1900 as a way to explain the energy distribution of blackbody radiation.

Before Planck's work, it was believed that energy could be emitted or absorbed in any amount, known as the "ultraviolet catastrophe." However, Planck proposed that energy is actually quantized and can only be emitted or absorbed in discrete units, now known as photons.

The value of Planck's constant was originally determined experimentally by Planck himself, but it was later refined by other scientists, including Albert Einstein. It has since been confirmed through various experiments and is considered to be one of the most accurately measured physical constants.

As for its origin, Planck's constant is a fundamental part of the quantum theory of light and is derived from the principles of quantum mechanics and the wave-particle duality of light. It is a fundamental constant in our understanding of the universe and plays a crucial role in many areas of physics, from atomic and molecular physics to cosmology.

I hope this helps to answer your questions about the origin and significance of Planck's constant. It truly is a remarkable constant that has greatly contributed to our understanding of the world around us. Thank you for bringing up such an interesting topic for discussion.