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Forum index » Science and Technology » Physics » Electromagnetics
amplitude of a photon
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robert1
science forum beginner


Joined: 15 Nov 2005
Posts: 21

PostPosted: Mon Jul 03, 2006 12:13 am    Post subject: amplitude of a photon Reply with quote

What amplitude does an electromagnetic wave have? We know the wavelength
relates to how much energy the photon has, but what does the amplitude of
the photon indicate? Is the amplitude the same for all electromegnetic
waves?

Roberto.
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jimp@specsol.spam.sux.com
science forum beginner


Joined: 11 Sep 2005
Posts: 42

PostPosted: Mon Jul 03, 2006 12:45 am    Post subject: Re: amplitude of a photon Reply with quote

robert <roberto_ruggeri_@hotmail.com> wrote:
Quote:
What amplitude does an electromagnetic wave have? We know the wavelength
relates to how much energy the photon has, but what does the amplitude of
the photon indicate? Is the amplitude the same for all electromegnetic
waves?

Roberto.

A photon doesn't have an "amplitude", it has an energy determined by
the frequency/wavelength.

The amplitude of an elecromagnetic wave is determined by the number of
photons in it.

--
Jim Pennino

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Josef Matz
science forum Guru Wannabe


Joined: 08 May 2005
Posts: 255

PostPosted: Mon Jul 03, 2006 3:38 am    Post subject: Re: amplitude of a photon Reply with quote

The square of the amplitude is proportional the average energy density of
photons in a certain volume,
or respectively proportional to the average number of photons flowing
through a surface per time unit.

Josef Matz

"robert" <roberto_ruggeri_@hotmail.com> schrieb im Newsbeitrag
news:KiZpg.67896$lQ.32137@newsfe3-gui.ntli.net...
Quote:
What amplitude does an electromagnetic wave have? We know the wavelength
relates to how much energy the photon has, but what does the amplitude of
the photon indicate? Is the amplitude the same for all electromegnetic
waves?

Roberto.

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