Physics 5A Quiz 6, Spring Semester 2008
Cuesta College, San Luis Obispo, CA
Cf. Giambattista/Richardson/Richardson, Physics, 1/e, Multiple-Choice Questions 11.5, 11.6, and 11.8
[3.0 points.] A wave has a frequency and wavelength of 200 Hz and 0.750 m, respectively. If the frequency of the wave source is changed, which wave parameters will also change as a result?
(A) The wavelength.
(B) The speed of the wave.
(C) (Both the wavelength and the speed of the wave will change.)
(D) (Neither the wavelength nor the speed of the wave will change.)
Correct answer: (B)
The speed of a wave depends on the properties of the medium, and not on frequency, which is a source parameter. However, wavelength is the parameter that is dependent on both speed and frequency, and thus changes as a result of changing the frequency of the source.
Student responses
Sections 4987, 4988
(A) : 9 students
(B) : 4 students
(C) : 20 students
(D) : 1 student
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