question 23 of 28 what happens to sound waves when the source of a sound is moving toward you? a. wave speed…

question 23 of 28 what happens to sound waves when the source of a sound is moving toward you? a. wave speed decreases. b. wavelength increases. c. amplitude decreases. d. frequency increases.

question 23 of 28 what happens to sound waves when the source of a sound is moving toward you? a. wave speed decreases. b. wavelength increases. c. amplitude decreases. d. frequency increases.

Answer

Brief Explanations:

When a sound source moves toward an observer, the Doppler effect causes the observed frequency to increase due to wave compression. Sound speed in a medium is constant, so wavelength decreases, while amplitude is unrelated to this motion.

Answer:

D. Frequency increases