Marissa is learning about the unique properties of waves. She has learned that whenever the wavelength of a wave increases, the frequency of the wave decreases. When does the speed of a wave change?

Responses

when a wave is reflected off a surface
when a wave is reflected off a surface

when the wave encounters a new medium
when the wave encounters a new medium

when the mass of the wave changes
when the mass of the wave changes

when the amplitude of the wave changes
when the amplitude of the wave changes

when the medium through which the wave is traveling changes

which answer choice

when the wave encounters a new medium