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Joined:	25 Feb 2009
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25 Feb 2009 10:08:09 IST

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explain valence band

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explain valence band...photo electric effect.......RATES ASSURED!!!!!!!!!

even tell me any link..........

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saharsha kumar keshkar

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Joined: 7 Aug 2008

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25 Feb 2009 10:13:41 IST

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http://www.goiit.com/posts/list/mechanics-conductors-and-insulators-911385.htm#936905

Neha Somani

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Joined: 19 Dec 2008

Posts: 288

25 Feb 2009 10:27:58 IST

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valence band whr the valence electrons of outermost shell r present.....photoeletric effect takes place when frequency more than threshould frequency is fall on the metal...& instatinousy emission of electons from the metal surface takes place...which is losly bound to the atom..not the free electrons....rate if usefull...

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