Wave Beats Flashcards
1
Q
Definition of Beats
A
The periodic variation in amplitude results from the superposition of two waves with slightly different frequencies.
2
Q
Beat Frequency
A
The frequency at which the amplitude modulation occurs, is equal to the absolute difference between the two frequencies:
𝑓𝑏𝑒𝑎𝑡 = ∣ 𝑓1 − 𝑓2 ∣
3
Q
Audible Beats
A
When two sound waves of close frequencies interfere, the resulting beats can be heard as a fluctuation in loudness.
4
Q
Application: Tuning Instruments
A
Musicians listen for beats to fine-tune instruments; the absence of beats indicates matching frequencies.
