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प्रश्न
What is meant by the ‘pitch’ of a note? Does it depend on the loudness or ‘quality’ of the ‘note’? How is pitch ‘related’ with frequency?
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उत्तर
The pitch of a note is determined solely by its frequency. The pitch, in fact, is a subjective sensation in the ear depending only upon the frequency of the musical sound and is quite independent of its loudness or quality. Pitch is thus a subjective phenomenon and cannot be physically measured. However, the relation between pitch and frequency is linear to a very close approximation. Hence the pitch is usually taken to be synonymous with frequency. Generally, notes of high frequency or pitch are shrill and sharp whereas those of low frequency or pitch are flat and dull.
संबंधित प्रश्न
The sound from a mosquito is produced when it vibrates its wings at an average rate of 500 vibrations per second. What is the time period of the vibration?
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- wavelength
- frequency and
- amplitude
- How is loudness related to the quantity mentioned above in part (a)?
Explain the following and illustrate your answer by drawing appropriate diagram:
Pitch
Give scientific reason for the following:
Windows sometimes rattle when the low notes of a pipe organ are sounded.
Three musical instruments give out notes at the frequencies listed below. Flute: 400 Hz; Guitar: 200 Hz; Trumpet: 500 Hz. Which one of these has the highest pitch?
