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photon

·ÕèÁÒ WhatIs.com

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WhatIs.com

㹺ҧÊÀÒ¾ áʧ·ÕèÁͧàËç¹ÁվĵԡÃÃÁàËÁ×͹»ÃÒ¡¯¡Òóì¤Å×è¹ áµè㹡ÒäҴËÇѧÍ×è¹ ÁÕ¡ÒáÃзÓà»ç¹¤ÇÒÁ ͹ØÀÒ¤Âè͵èÍà¹×èͧ¤ÇÒÁàÃçÇÊÙ§ Isaac Newton à»ç¹Ë¹Öè§ã¹¹Ñ¡ÇÔ·ÂÒÈÒʵÃìáÃ¡æ ·ÕèµÑ駷ÄÉ®ÕÇèÒ áʧ»ÃСͺ´éÇÂ͹ØÀÒ¤ ¹Ñ¡ÇÔ·ÂÒÈÒʵÃìÊÁÑÂãËÁèÊÒ¸ÔµÇèÒ ¾Åѧ§Ò¹ã¹Ê¹ÒÁáÁèàËÅç¡ä¿¿éÒ»ÃСͺ´éÇÂᾤࡵᡡѹ ¤ÓÇèÒ photon (⿵͹ ËÁÒ¶֧͹ØÀÒ¤áʧ·ÕèÁͧàËç¹) à»ç¹´éҹ˹Ö觢ͧᾤࡵ¾Åѧ§Ò¹àËÅèÒ¹Õé ¾ÄµÔ¡ÃÃÁàËÁ×͹͹ØÀÒ¤äÁèä´é¨Ó¡Ñ´¡ÑºÊèǹÁͧàËç¹ä´é¢Í§Ê໤·ÃÑÁ¡ÒÃá¼èÃѧÊÕáÁèàËÅç¡ä¿¿éÒ ¤Å×è¹ÇÔ·ÂØ ÃѧÊÕÍÔ¹¿ÃÒàô áʧÁͧàËç¹ä´é ÃѧÊÕÍØŵÃÒäÇâÍàŵ ÃѧÊÕàÍç¡«ì áÅÐÃѧÊÕá¡ÁÁÒ ·Ñé§ËÁ´»ÃСͺ´éÇ photon áµèÅлÃÐàÀ·ºÃèؾÅѧ§Ò¹à©¾ÒзÕè¢Ö鹡Ѻ¤ÇÒÁÂÒǤÅ×è¹

¡ÒÃà´Ô¹¢Í§â¿µÍ¹¼èÒ¹¾×é¹·ÕèÇèÒ§·Õè¤ÇÒÁàÃçÇ»ÃÐÁÒ³ 186,282 äÁÅì (299,792 ¡ÔâÅàÁµÃ) µèÍÇÔ¹Ò·Õ ÊÔ觹Õéà»ç¹¨ÃÔ§ äÁèÇèÒ¨ÐÁÕ¤ÇÒÁÂÒǤÅ×è¹áÁèàËÅç¡ä¿¿éÒ¨Ðà»ç¹à·èÒäà 㹵ÑÇ¡ÅÒ§¹Í¡¨Ò¡ÊØ­­Ò¡ÒÈ ¤ÇÒÁàÃçǨÐŴŧ µÑÇÍÂèÒ§ áʧÁͧàËç¹ä´é à´Ô¹·Ò§¼èÒ¹á¡éǪéÒ¡ÇèҾ鹷ÕèÇèÒ§ÀÒ¹͡ ¤Å×è¹ÇÔ·ÂØà´Ô¹·Ò§¼èÒ¹¼èÒ¹â¾ÅÕàÍ·¸ÔÅÕ¹ã¹ÊÒÂÊ觪éÒ¡ÇèÒà´Ô¹·Ò§¼èÒ¹ºÃÃÂÒ¡ÒÈ ÍѵÃÒÊèǹ¤ÇÒÁàÃçǢͧ⿵͹㹵ÑÇ¡Åҧ੾ÒСѺ¤ÇÒÁàÃçÇã¹ÊØ­­Ò¡ÒÈ àÃÕ¡ÇèÒ velocity factor ῤàµÍÃì¹ÕéÍÂÙèÃÐËÇèÒ§ 0 ¶Ö§ 1 àÊÁÍ (ÃéÍÂÅÐ 0 ¶Ö§ 100) áÅТÖ鹡Ѻ¡ÒâÂÒ¢ͧ¤ÇÒÁÂÒǤÅ×è¹

¤ÇÒÁÂÒǤÅ×è¹ÊÑ鹡ÇèҢͧ¡ÒÃú¡Ç¹áÁèàËÅç¡ä¿¿éÒ ¨ÐÁÕ¾Åѧ§Ò¹ÁÒ¡¢Öé¹·ÕèºÃèØã¹â¿µÍ¹ µÒÁ¤ÇÒÁ¨ÃÔ§¤ÇÒÁÊÑÁ¾Ñ¹¸ì¹ÕéÁÕ¤ÇÒÁáÁè¹ÂÓ´éÇ¡ÒûÃÐÂØ¡µì·Ò§¤³ÔµÈÒʵÃì ¶éÒ e á·¹¾Åѧ§Ò¹ (˹èÇÂÇÑ´à»ç¹¨ÙÅ – joule) ºÃèØÍÂÙèã¹áµèÅÐ⿵͹áÅÐ s á·¹¤ÇÒÁÂÒǤÅ×è¹áÁèàËÅç¡ä¿¿éÒ (˹èÇÂà»ç¹àÁµÃ) ´Ñ§¹Ñé¹

e = hc / s

â´Â h à»ç¹µÑǤ§·Õè¾Åѧ¤ì (Planck's constant) à·èҡѺ 6.626 ¤Ù³ 10^34 joule-second áÅÐ c à»ç¹¤ÇÒÁàÃçǢͧ¡ÒÃà´Ô¹·Ò§¢Í§Ê¹ÒÁáÁèàËÅç¡ä¿¿éÒ¼èÒ¹µÑÇ¡ÅÒ§·Õèà»ç¹¤Ó¶ÒÁ (»ÃÐÁÒ³ 2.998 ¤Ù³ 10^8 àÁµÃµèÍÇÔ¹Ò·Õã¹ÊØ­­Ò¡ÒÈ) ÊٵçèÒ¡ÇèÒ㹡ÒûÃÐÂØ¡µì¤ÇÒÁ¶Õè ¶éÒ f á·¹¤ÇÒÁ¶Õè¢Í§Ê¹ÒÁáÁèàËÅç¡ä¿¿éÒ (˹èÇÂàÎÔÃì·«ì) ´Ñ§¹Ñé¹

e = hf

¾Åѧ§Ò¹·ÕèºÃèØÍÂÙèã¹â¿µÍ¹à´ÕèÂÇäÁè¢Ö鹡Ѻ¤ÇÒÁ˹Òá¹è¹¢Í§¡ÒÃá¼èÃѧÊÕ ·Õè¤ÇÒÁÂÒǤÅ×è¹à©¾ÒÐã´æ ¤ÇÒÁÂÒǤÅ×蹢ͧáʧá¾Ãè¼èÒ¹àÅà«ÍÃì ÎÕàÅÕèÂÁ-¹ÕÍ͹ ·Ø¡â¿µÍ¹ºÃèؾÅѧ§Ò¹ÃÇÁà·èҡѹ äÁèÇèÒáËÅ觨ÐÊÅÑÇàËÁ×͹à·Õ¹ä¢ËÃ×ÍÊÇèÒ§àËÁ×͹´Ç§ÍÒ·ÔµÂì ¤ÇÒÁÊØ¡ãÊËÃ×ͤÇÒÁ˹Òá¹è¹à»ç¹¿Ñ§¡ìªÑ¹¢Í§¨Ó¹Ç¹â¿µÍ¹·Õè¡Ãзº¡Ñº¾×é¹¼ÔǵèÍ˹èÇÂàÇÅÒ

ÈѾ·ìà¡ÕèÂÇ¢éͧ

electromagnetic radiation spectrum, wavelength, frequency, hertz, electromagnetic field, joule

update: 9 ÁԶعÒ¹ 2553

IT A-Z »ÃѺ»ÃاÅèÒÊØ´
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interface definition language (IDL)

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