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Answered

1) In this scale, the frequency of each C-note in vibrations per second is measured in Hz. It can be expressed as a power of 2, as shown. What is the frequency of the note C7 in exponential form and in logarithmic form?

C4: 256 Hz

C5: 512 Hz

C6: 1024 Hz


2) If the frequency of a note C is 32 vibrations per second, how many octaves higher or lower than middle C is this note?

A3 octaves lower
B4 octaves higher

C)2 octaves higher

D)1 octaves lower

Verified Answer :

  1. For C4: in exponential,  256 = 2^28 while in log, log2(256)=8
    2.     2 octaves higher middle C is this note

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