which of the following characteristics of sound waves are unchanged when the waves refract from air to…

which of the following characteristics of sound waves are unchanged when the waves refract from air to water?\na velocity\nb wavelength\nc frequency\nd all of the above

which of the following characteristics of sound waves are unchanged when the waves refract from air to water?\na velocity\nb wavelength\nc frequency\nd all of the above

Answer

Explanation:

Step1: Recall wave - refraction concept

When a sound wave refracts from one medium (air) to another (water), the speed of sound changes because the properties of the two media are different. The speed of sound is generally faster in water than in air. The relationship between speed (v), frequency (f), and wavelength (\lambda) is given by (v = f\lambda).

Step2: Analyze the change of wavelength

Since the speed (v) changes and the frequency (f) remains constant during refraction, from (v = f\lambda), when (v) changes and (f) is constant, the wavelength (\lambda=\frac{v}{f}) must change.

Step3: Understand the constancy of frequency

The frequency of a wave is determined by the source of the wave. When a sound wave travels from air to water, the source of the wave does not change, so the frequency of the sound wave remains the same during refraction.

Answer:

C. Frequency