Can sound wave also interference just like EM wave

AI Thread Summary
Sound waves can indeed interfere, similar to electromagnetic waves. This phenomenon is demonstrated through effects like standing waves, where certain locations experience amplified sound while others have minimal or no sound. An example of this was observed in a lecture hall at Cornell, where a low-frequency sound generator created significant variations in sound intensity across different areas. The discussion clarifies that sound waves can diffract and exhibit interference patterns. Understanding sound wave interference is essential for applications like noise cancellation technology.
Rico L
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its my exam question.. i am not so sure... but i put it can't because sound is a wave of vibration which it can diffract but not interence... but i don't know.. can sound wave interference?

cheers
 
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Yes. That is what the Bose noise cancelling headphones do.
 
awww! damn ! i got it wrong!--

thanks anyway
 
Rico L said:
can sound wave interference?

cheers

Yes indeed. I witnessed a dramatic demonstration of this at Cornell. A low frequency sound generator was activated at the front of a large lecture hall. Standing waves were set up in the hall's air. At one location the noise was very loud. If you stepped away to a nearby location, you couldn't hear anything!
 
I was using the Smith chart to determine the input impedance of a transmission line that has a reflection from the load. One can do this if one knows the characteristic impedance Zo, the degree of mismatch of the load ZL and the length of the transmission line in wavelengths. However, my question is: Consider the input impedance of a wave which appears back at the source after reflection from the load and has traveled for some fraction of a wavelength. The impedance of this wave as it...

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