5
QuizMultiple Choice

Wavelength and Frequency

Question 5 • Applications and Modeling

A chord consists of notes that sound good together. The C major chord, starting at middle C, has the following frequencies:C - 262 HzE - 330 HzG - 392 HzDetermine the ratio of the frequency of G to C. Express the answer in a simple integer ratio. (Due to rounding the ratio will be approximate.)

Answer
A
5 to 4
B
3 to 2
C
6 to 5
D
9 to 8

Explanation

Divide G’s frequency by C’s frequency: 392 ÷ 262 ≈ 1.496. The simple integer ratio 3 to 2 equals 1.5, which is approximately the same. So the ratio of G to C is 3 to 2, choice B.

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