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Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
MCQ
Note is a sound:
  • ✓
    Of mixture of several frequencies.
  • B
    Of mixture of two frequencies only.
  • C
    Of a single frequency.
  • D
    Always unpleasant to listen.
✓

Answer

Correct option: A.
Of mixture of several frequencies.

The sound which is produced due to a mixture of several frequencies is called a note and it is pleasant to listen too. An octave consists of eight different note, ranging from $256Hz$ to $512Hz.$

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