Testapp16 march Asked a Question
March 17, 2022 2:52 pmpts 16 pts
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  • Testapp16 march
    share your email
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  • Test exitpopup21 thankyou
    the change in wave frequency during the relative motion between a wave source and its observer
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  • Test exitpopup21 Best Answer
    an increase or decrease in the frequency of sound, light or other waves as the source and observer move towards each other
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