Article View: sci.physics.relativity
Article #7390Re: question: concept of photon wavelength
From: Androcles
Date: Wed, 18 Jul 2007 12:53
Date: Wed, 18 Jul 2007 12:53
33 lines
2787 bytes
2787 bytes
"PD" <TheDraperFamily@gmail.com> wrote in message news:1184761864.333185.148730@m37g2000prh.googlegroups.com... : On Jul 17, 1:59 am, Pentcho Valev <pva...@yahoo.com> wrote: : > Tom Roberts wrote in sci.physics.relativity: : > : > > martin wrote: : > > > There is a question I have about the concept of wavelength of a photon. : > : > > A photon has no intrinsic wavelength; indeed it's not clear whether the : > > concept "wavelength" even applies to a photon. And there's also the : > > difficulty of attempting to discuss "a" photon.... : > : > Then, Roberts Roberts, discuss the textbook formula : > : > frequency = (speed of light)/(wavelength) : : That formula applies to an aggregation of photons. Wavelength is a : measurable quantity for *light*. It is not a measureable quantity for : a single photon. nu = E/h -- Planck. Bumpy roads have "wavelength" (distance between bumps), cars have frequency. Learn the difference. A photon has no intrinsic wavelength but it has an intrinsic frequency. Having no intrinsic wavelength it can have no intrinsic speed. It is NOT difficult to discuss "a" photon (except with Roberts, of course, doing his usual handwaving). It is difficult to discuss anything with Roberts, he has his head up his arse.
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X-Google-Thread: 10f545,8d632c40cc292adb X-Google-Thread: 10b271,24ee896443df42d4 X-Google-Thread: 104cdc,24ee896443df42d4 X-Google-Thread: f74ae,24ee896443df42d4 X-Google-Thread: fa4c1,24ee896443df42d4 X-Google-Attributes: gid10f545,gid10b271,gid104cdc,gidf74ae,gidfa4c1,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news4.google.com!feeder1-2.proxad.net!proxad.net!feeder1-1.proxad.net!194.117.148.138.MISMATCH!pe2.news.blueyonder.co.uk!blueyonder!pe1.news.blueyonder.co.uk!blueyonder!fe2.news.blueyonder.co.uk.POSTED!53ab2750!not-for-mail From: "Androcles" <Engineer@hogwarts.physics> Newsgroups: sci.physics.relativity,sci.physics,sci.philosophy.tech,sci.astro,fr.sci.physique References: <4697af7c$0$25496$9a622dc7@news.kpnplanet.nl> <VsAmi.39603$Um6.2142@newssvr12.news.prodigy.net> <1184655555.223476.299960@n2g2000hse.googlegroups.com> <1184761864.333185.148730@m37g2000prh.googlegroups.com> Subject: Re: question: concept of photon wavelength Lines: 35 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 Message-ID: <e3oni.37339$w97.2516@fe2.news.blueyonder.co.uk> Date: Wed, 18 Jul 2007 12:53:30 GMT NNTP-Posting-Host: 82.34.70.125 X-Complaints-To: http://www.virginmedia.com/netreport X-Trace: fe2.news.blueyonder.co.uk 1184763210 82.34.70.125 (Wed, 18 Jul 2007 13:53:30 BST) NNTP-Posting-Date: Wed, 18 Jul 2007 13:53:30 BST