Beat (acoustics)
/Phase beats
/Literature search
/Just fifth displace stretch
/Exact phase beats
/Differential equations
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A wild-goose chase
First calculate
using the beat period measured directly from the graph (then converting to frequency.)
![{\displaystyle T_{B}=8T_{0}+3T_{x}=\left(6\times 8+3=51\right)T_{x}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/1fdf85cba0940d3a9796f03a3d8d871605626564)
CHECK WITH BELOW
Now, check against the formula:
, where
(since there are 3 p-waves in time
.)
![{\displaystyle {\widetilde {T}}=(8\times 6+3)T_{x}=51T_{x}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/3ffded9aff48d96b590b494bf114157b719a284f)
THIS CHECKS WITH ABOVE