Q: 112 (IAS/2008)
question_subject:
Science
question_exam:
IAS
stats:
0,35,17,9,4,35,4
keywords:
{'frequencies': [0, 0, 1, 1], 'frequency': [0, 0, 1, 3], 'diatonic scale': [0, 0, 1, 0], 'hz': [0, 0, 4, 8], 'musical scale': [0, 0, 1, 0]}
In Option 1, the statement is that a widely used musical scale, the diatonic scale, has seven frequencies. This is indeed correct; the diatonic scale is composed of seven distinct pitches or frequencies, making up the seven notes of the scale.
Option 2`s statement is that the frequency of the note `C` is 256 Hz and that of `C` an octave higher is 512 Hz. This is also accurate. In musical terms, an octave above a certain note is essentially a doubling of the frequency of that note. So, if a `C` note has a frequency of 256 Hz, a `C` note an octave higher will indeed have a frequency of 512 Hz.
Therefore, the answer is Option 3, as both statements given are correct.