# The student measures the wave at 1 m and at 1 km from

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: uency and the 20-kHz second harmonic. The student measures the wave at 1 m and at 1 km from the source. At each of these two distances, is the student likely to detect distortion of the wave in the form of a second harmonic signal that is significant compared to that of the fundamental? Justify your answer. E3. A plane sound wave propagating parallel to the ground has a waveform with one pronounced pressure peak. There are three microphones. In Cartesian coordinates (x, y), microphone 1 is at (0, 0), microphone 2 is at (1 m, 0), and microphone 3 is at (0, 1 m). North is in the direction of the positive y axis. (a) A sound wave is propagating from southwest to northeast and the gas medium is hydrogen (at 0C). If microphone 1 receives the pressure peak at t 1 = 0 (a reference time), then what are the times ( t 2 and t 3 ) that microphones 2 and 3 receive the pressure peak. (b) Now the medium is unknown. Microphone 1 receives the peak pressure at time t 1 = 0 , microphone 2 at time t 2 = 2.25 ms , and microphone 3 at time t 3 = 1.47 ms . What is the speed of the wave, and in what is the wavef...
View Full Document

• Fall '08
• OBRIAN
• Wavelength, Sound pressure, Kinsler, peak condensation amplitude, acoustic pressure amplitude, excess density amplitude

{[ snackBarMessage ]}

Ask a homework question - tutors are online