Graphic Relation Between Amplitude and Sound Intensity Level

نویسندگان

چکیده

We present a simple experiment that allows us to demonstrate graphically the intensity of sound waves is proportional square their amplitude, result theoretically analyzed in any introductory wave course but rarely demonstrated empirically. To achieve our goal, we use an audio signal generator that, when connected loudspeaker, produces sine can easily be observed and measured using oscilloscope. The measurements made with these instruments allow create plot amplitude vs. level, which verifies mathematical relationship between mentioned above. Among experimental errors, obtained excellent agreement what expected.

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ژورنال

عنوان ژورنال: The Physics Teacher

سال: 2021

ISSN: ['1943-4928', '0031-921X']

DOI: https://doi.org/10.1119/10.0006131