ATAR Notes: Forum
VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Physics => Topic started by: illuminati_confirmed on July 26, 2017, 11:23:48 am
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I'm struggling with this question about two speakers at the same frequency (between 150Hz and 250Hz) and wavelength where 2.4m away from one of them than the other there is a minimum, and you have to find their frequency.
How am I meant to approach this question and how do I complete it?
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Hi, are you able to send a screenshot of the question? I can't find the exam on the VCAA website.
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I'm struggling with this question about two speakers at the same frequency (between 150Hz and 250Hz) and wavelength where 2.4m away from one of them than the other there is a minimum, and you have to find their frequency.
How am I meant to approach this question and how do I complete it?
Based off what you've said I think that the question wants you to do this:
-understand that constructive and destructive interference can occur for longitudinal waves
-realise that destructive interference is occurring
-use that knowledge and the distance of the first minima to find the wavelength
-convert that into a frequency
Not 100% sure though, if you could send a pic of the question that would be great :)