Noise-canceling headphones are an application of destructive interference. Each side of the headphones uses a microphone to pick up noise, delays it slightly, then rebroadcasts the noise next to your ear where it can interfere with the incoming sound wave of the noise. Suppose you are sitting 1.8 m from an annoying, 310 Hz sound. Part A What is the minimum headphone delay, in ms, that will tend to cancel this noise? Assume one-dimensional motion for the wave along an axis into your ear. Express your answer in milliseconds. View Available Hint(s) Submit -- ΑΣΦ 2.2 Previous Answers X Incorrect; Try Again; 13 attempts remaining ? ms

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Noise-canceling headphones are an application of destructive interference.
Each side of the headphones uses a microphone to pick up noise, delays it
slightly, then rebroadcasts the noise next to your ear where it can interfere
with the incoming sound wave of the noise. Suppose you are sitting 1.8 m
from an annoying, 310 Hz sound.
Part A
What is the minimum headphone delay, in ms, that will tend to cancel this noise? Assume one-dimensional motion for the wave along an axis into your ear.
Express your answer in milliseconds.
► View Available Hint(s)
t
Submit
=
2.2
ΑΣΦ
Previous Answers
X Incorrect; Try Again; 13 attempts remaining
www.
?
ms
Transcribed Image Text:Noise-canceling headphones are an application of destructive interference. Each side of the headphones uses a microphone to pick up noise, delays it slightly, then rebroadcasts the noise next to your ear where it can interfere with the incoming sound wave of the noise. Suppose you are sitting 1.8 m from an annoying, 310 Hz sound. Part A What is the minimum headphone delay, in ms, that will tend to cancel this noise? Assume one-dimensional motion for the wave along an axis into your ear. Express your answer in milliseconds. ► View Available Hint(s) t Submit = 2.2 ΑΣΦ Previous Answers X Incorrect; Try Again; 13 attempts remaining www. ? ms
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