A single signal generator is linked to two loudspeakers, and it outputs one frequency. The loudspeakers are arranged facing one another so that a stationary sound wave is formed in the space between them. A microphone, connected to a cathode-ray oscilloscope (CRO), is placed between the two loudspeakers. The microphone is then moved along the straight line joining the loudspeakers. As the microphone is moved, the CRO trace shows 5 maximum amplitudes. The microphone travels a distance of $2.0\,\text{m}$ from the position giving the first maximum to the position giving the fifth maximum. What is the wavelength of the sound wave?
- A$0.40\,\text{m}$
- B$0.50\,\text{m}$
- C$0.80\,\text{m}$
- D$1.0\,\text{m}$