Displacement distance graph of two sound waves A and B, travelling in a medium, are as shown in the diagram below:

Study the two sound waves and compare their :
Wavelengths

Explanation

For wave A : Amplitude `(a_(1))=20cm`, Wavelength `(lamda_(1))=lamdacm` (say)
For wave B : Amplitude `(a_(2))=10cm`, Wavelength `(lamda_(2))=2lamdacm`
`lamda_(1)/lamda_(2)=lamda/(2lamda)=1/2`
The wavelength of wave A is half of the wavelength of wave B.