AnswersApplications and ModelingWavelength and FrequencyQuestion 7
7
QuizMultiple Choice

Wavelength and Frequency

Question 7 • Applications and Modeling

The C major key, starting with the middle C , consists of seven notes (white keys on the piano) with the following frequencies.NoteCDEFGABFrequency(Hz)261.6293.7329.6349.2392.0440.0493.9Determine the ratio of the note D to middle C.

Answer
A
1.1227
B
1.4566
C
1.234
D
1.3454

Explanation

Divide the frequency of D by the frequency of middle C: 293.7 ÷ 261.6 ≈ 1.1227. So D’s frequency is about 1.1227 times the frequency of middle C, matching choice a, 1.1227.

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