Example 16.1 (Section 16.1) showed that for sound waves in air with frequency 1000 Hz, a displacement amplitude of 1.2 ? 10-8 m produces a pressure amplitude of 3.0 ? 10-2 Pa.
(a) What is the wavelength of these waves?
——- m
(b) For 1000 Hz waves in air, what displacement amplitude would be needed for the pressure amplitude to be at the pain threshold, which is 30 Pa?
———— m
(c) For what wavelength and frequency will waves with a displacement amplitude of 1.2 ? 10-8 m produce a pressure amplitude of 7.5 ? 10-3 Pa?
wavelength
——- m
frequency
——– Hz