A student sets up a wave in a shallow tray of water.
The student measures a distance, LLL, between the first wave peak and the fifth wave peak as shown below.
What is the wavelength of the wave?
5.6 cm5.6\text{ cm}5.6 cm
7.0 cm7.0\text{ cm}7.0 cm
9.3 cm9.3\text{ cm}9.3 cm
28 cm28\text{ cm}28 cm