Which of the following statements about sound is correct?
A
when sound travels from air to a denser medium, it is refracted away from the normal at the point of incidence
B
sound travels faster in air than in water
C
the wavelength of sound changes when it travels from to water
D
the frequency of it travels from air to water
Verified Correct Answer: C.
Physical Principles & Numerical Solution
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.
Source: Myschool Past Questions Archive (Record #33914)