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    jzidane's Avatar
    jzidane Posts: 1, Reputation: 1
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    #1

    Oct 9, 2012, 05:32 PM
    protons equation help
    How many photons are produced in a laser pulse of 0.528 J at 679 nm?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Oct 10, 2012, 03:39 AM
    Post your attempt please
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