Recent content by PhysJs

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    Error in Y-intercept, Least-square+Excel=True?

    Ok, it appears I given an incorrect description: The package returns an error in slope and y-intercept in addition to the values of the slope and y-intercept. It does not give an x-intercept. Will edit the original post. All resources I found so far, just seem to take the error of the slope...
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    Error in Y-intercept, Least-square+Excel=True?

    Homework Statement What is the error of the y-intercept and gradient of a fitted line? The line is fitted to some number of data points each with a known error in the x and y values. More specifically, I have fitted a linear equation to some data points using Microsoft Excel LINEST, and the...
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    Graduate Why do photoelectrons have a range of kinetic energies?

    Thank you ZapperZ. I believe all the issues are now resolved.
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    Graduate Why do photoelectrons have a range of kinetic energies?

    Thank you ZapperZ, that is truly a lot of information, I will have a lot to read up. It definitely answers my question. So Explanation 2 is not valid?
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    Graduate Why do photoelectrons have a range of kinetic energies?

    Mathman, yeah I was thinking that there might be another explanation: that both explanations are true. But I have so far found no direct evidence that both must be true or that only either one is true.
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    Graduate Why do photoelectrons have a range of kinetic energies?

    First of all, I would like to apologize if this question is in the wrong section of the forums. I'm not sure if the photoelectric effect should go into "Quantum Physics", "Classical Physics" or even "Homework & Coursework Questions" Descriptions of the photoelectric effect commonly states the...