Quiz 6 Phys 101

Quiz 6 Phys 101 Question 1 2 out of 2 points The 3rd harmonic of a complex tone has a frequency of 1,200 Hz. The frequency of the tone is Selected Answer: b. 400 Hz.  Question 2 2 out of 2 points A source emits sound at a fixed constant frequency f. If the source moves away from you, the frequency you hear is Selected Answer: d. lower than f.  Question 3 0 out of 2 points Which of the following is not one of the ways sound can be used? Selected Answer: d. to circulate the refrigerant in a refrigerator  Question 4 2 out of 2 points A source emits sound at a fixed constant frequency f. If the source moves, the wavelength of the sound in front of the direction of motion is ____________ the wavelength behind the direction of motion. Selected Answer: d. smaller than