Final answer:
Beats is an example of a low intensity but high frequency disturbance, occurring when two sound waves of slightly different frequencies interfere, leading to a warbling sound or fluctuating loudness, common in music and engine noise.
Step-by-step explanation:
An example of a low intensity but high frequency disturbance is the phenomenon known as beats. Beats occur when two waves of slightly different frequencies interfere with each other, leading to a periodic variation in amplitude - a rise and fall in loudness. This can occur in music when two adjacent piano keys are struck simultaneously, causing a warbling sound due to the interference of their close but distinct frequencies. Another common example is the fluctuating engine noise heard from a two-engine jet aircraft while taxiing, where the combined sound of the engines alternates between louder and softer due to the slight difference in their engine frequencies. Both of these scenarios result from the superposition of waves and exhibit high frequency but low intensity disturbances.
The principle of superposition shows that when two or more waves meet, their effects add together, and the resultant wave pattern can be more complex. Moreover, disturbances that repeatedly add and subtract can lead to a more intricate wave form as demonstrated