Study the image of two waves traveling at the same speed through the same medium.

Which of the following choices most accurately discusses the amplitudes and wavelengths of the two waves?

The two waves have the same wavelength because the height of each wave is the same. The blue wave has a greater frequency because it crosses the x axis at a later point than the black wave.

The two waves have the same amplitude because the height of each wave is the same. Both waves have the same wavelength because the distance between two crests is the same. The waves are slightly shifted, or out of phase.

The two waves have the same amplitude because the height of each wave is the same. The blue wave has a greater wavelength because it crosses the x axis at a later point than the black wave. The waves are slightly shifted, or out of phase.

The two waves have the same amplitude because the distance between two crests is the same. The two waves have the same wavelength because the height of each wave is the same. The waves are slightly shifted, or out of phase.