Question 8 of 15 Using two pieces of string stretched to the same tension, Pythagoras discovered the ratio for creating the interval of a perfect fifth was
A. 2:1
B. 3:4
C. 3:5
D. 2:3

A. 2.1

Explanation:

An octave is a music interval defined by the ratio 2:1 regardless of the starting frequency. From 100 Hz to 200 Hz is an octave, as is the interval from 2000 Hz to 4000 Hz. The intervals which are generally the most consonant to the human ear are intervals represented by small integer ratios.

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