Which of the follwing statements concerning a travelling wave is/are correct?
(1)All particles move with the same speed as the wave speed
(2)All particles vibrate at the same frequency
(3)All particles have the same amplitude
邊幾個o岩??
唔該每一個statement都解釋!!!
thx~~~~
phy問題wave!!
2007-12-25 3:27 am
回答 (1)
2007-12-25 4:48 am
✔ 最佳答案
( 1 ) wrongWhen the particle is at extreme postion , it's velocity = 0.
( 2 ) Right
Frequency of vibration of particle = frequency of wave
( 3 ) Right
The travelling contain a certain amount of energy , which will give a certain fixed amplitude of particles on the wave.
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