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    I don't know how to do the question ... please help me, thanks
    (the question is in the attachment)
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  1. File Type: doc wave question.doc (111.5 KB, 77 views)
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    (Original post by hastudent)
    I don't know how to do the question ... please help me, thanks
    (the question is in the attachment)
    So a wavelength is the distance from one point on a wave to the next equivalent point. i.e. after a point the wave needs to go up (to a crest) and then down (to a trough) and then back to the starting point for a complete wavelength.

    In the file, 10m is the length for 3 crests and 2 troughs. This is 2 whole waves, and one half a wave. So 2.5 wavelengths = 10m. So what would one wavelength be?
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    Is it 10m/2.5= 4 wavelengths ?
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    (Original post by hastudent)
    Is it 10m/2.5= 4 wavelengths ?
    Yes so the wavelength is 4m.
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    I understand it now. Thank you
 
 
 
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