When two or more wave moving through the same region of space,
Wave maintain their integrity upon overlapping (without themselves being permanently changed).
Press the -/+ button: change the direction of green wave.
two waves with same frequency and amplitude but opposite direction ==standing wave.
What if two wave with different amplitude?
Frequency: enter frequency f for blue/yellow waves,
Wave is not necessary moves with the same speed.
We can calculate wave speed v = f*λ
Waves with two different wavelength produce beats phenomenon. (sample GIF picture)
|click left mouse button||The animation resumes
when the mouse button is released
|click right mouse button||The animation resumes
when click mouse button again
Click right mouse button: faster by a factor of 1.5
Your comments/suggestions are highly appreciated. My E-mail email@example.com
Author：Fu-Kwun Hwang Dept. of physics National Taiwan Normal University