Can sound wave also interference just like EM wave

[Rico L]

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

 

[Dale]

Yes. That is what the Bose noise cancelling headphones do.

 

[Rico L]

awww! damn ! i got it wrong!--

thanks anyway

 

[GRDixon]

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!