Which of the following statements about sound is correct?
- when sound travels from air to a denser medium, it is refracted away from the normal at the point of incidence
- sound travels faster in air than in water
-
the wavelength of sound changes when it travels from to water
- the frequency of it travels from air to water
The correct answer is: C
Explanation
When sound moves from air (a less dense medium) to water (a denser medium), its speed increases, leading to a change in wavelength while the frequency remains constant.