Echo

Mathematics

19 July, 08:27

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?

A) 3 octaves lower

B) 4 octaves higher

C) 2 octaves higher

D) 1 octaves lower