Many places that require a quiet atmosphere use "white noise" generators. These are sound generators that issue sound in the range of frequencies most commonly found in background noise, such as those generated by cars. The white noise makes the area quieter by _________.
A) setting up a "sound shield" against background vibrations
B) destructively interfering with the background noise
C) constructively interfering with the background noise
D) setting up a phased array of sound waves
Thank you so much!!!!!
A) setting up a "sound shield" against background vibrations
B) destructively interfering with the background noise
C) constructively interfering with the background noise
D) setting up a phased array of sound waves
Thank you so much!!!!!
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B) Destructive interference
because
they "issue sound in the range of frequencies commonly found in background noise" and it makes the area QUIETER
because
they "issue sound in the range of frequencies commonly found in background noise" and it makes the area QUIETER
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You're better than that.I'm sure you're smarter than you think you are.Read the problem carefully and think about it.If you don't know the answer then use your gut to answer it.You're not fooling anybody but yourself.