Question

the distance between a consecutive crest and trough is X the wavelength of the wave is:
(a) 2x
(b) x/2
(c) x
(d) 4x​

Answer 1

Answer:

x bcoz according to the defination wavelength is the distance between two consecutive crest and trough.

Answer 2

2x The wavelength of the sound wave is the distance between two consecutive crests or two consecutive troughs. The sound wave is periodic. So the length of the crests or trough are always same. Here, it is given that the distance between a crest and its consecutive trough foe a sound wave is L. So, its wavelength is 2L.