Experiment of December 22, 2019:

The time to submit an answer is over. You can now view the solution of the experiment.

Solution video:

Experiment:

The following files are needed for the experiment: PiA2019_Experiment_22_tone_a.wav, PiA2019_Experiment_22_tone_b.wav, and PiA2019_Experiment_22_tones_a_and_b.wav.

Question:

What does Mr. Santa observe at frequency peaks and amplitude as a function of time?

A) Frequency peak of first tone: 422 Hz, second tone: 445 Hz. Single tones show sinusoidal oscillation with constant amplitude, superposition shows sinusoidal oscillation with sinusoidal amplitude.

B) Frequency peak of first tone: 422 Hz, second tone: 445 Hz. Single tones show sinusoidal oscillation with sinusoidal amplitude, superposition shows sinusoidal oscillation with constant amplitude.

C) Frequency peak of first tone: 445 Hz, second tone: 422 Hz. Single tones show sinusoidal oscillation with constant amplitude, superposition shows sinusoidal oscillation of sinusoidal amplitude.

D) Frequency peak of first tone: 445 Hz, second tone: 422 Hz. Single tones show sinusoidal oscillation with sinusoidal amplitude, superposition shows sinusoidal oscillation with constant amplitude.