Which two notes are not an octave apart?1) 256 Hz and 512 Hz2) 262 Hz and 524 Hz3) 331 Hz and 622 Hz4) 277 Hz and 554 Hz

Question

03-11-2022
Physics

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Which two notes are not an octave apart?1) 256 Hz and 512 Hz2) 262 Hz and 524 Hz3) 331 Hz and 622 Hz4) 277 Hz and 554 Hz

Sagot :

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PriyahC163533 PriyahC163533 · Answer 1 · 2022-11-03T07:49:36-04:00

ANSWER

Option 3

EXPLANATION

Two notes are said to be an octave apart when the frequency of one note is exactly 2 times the other. In other words, it has twice as many waves.

Let us calculate the ratio of each option:

[tex]\begin{gathered} \Rightarrow\frac{512}{256}=2 \\ \Rightarrow\frac{524}{262}=2 \\ \Rightarrow\frac{622}{331}=1.88 \\ \Rightarrow\frac{554}{277}=2 \end{gathered}[/tex]

As we can see, only in option 3 is the higher frequency not exactly 2 times the lower frequency.

Therefore, the answer is option 3.

Sagot :

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