Ask Question
8 September, 23:04

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, 200 Hz buzzing sound.

+4
Answers (1)
  1. 9 September, 02:17
    0
    The question for this problem would be the minimum headphone delay, in ms, that will cancel this noise.

    The 200 Hz. period = (1/200) = 0.005 sec. It will need to be delayed by 1/2, so 0.005/2, that is = 0.0025 sec. So converting sec to ms, will give us the delay of:Delay = 2.5 ms.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Noise-canceling headphones are an application of destructive interference. Each side of the headphones uses a microphone to pick up noise, ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers