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    http://www.ocr.org.uk/Images/171758-...-materials.pdf

    For the above paper, q 4bii, how can you have 1Hz at the peak and still go upto 3Hz? (mark scheme at bottom of document)
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    It looks like a mistake to me - the highest you can go is to 2.5Hz on the graph given. I'll be making some videos on these specimen papers soon.

    Mr Matheson
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    (Original post by Mr Matheson)
    It looks like a mistake to me - the highest you can go is to 2.5Hz on the graph given. I'll be making some videos on these specimen papers soon.

    Mr Matheson
    thank you
 
 
 
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