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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
A person standing between two vertical cliffs and 480 m from the nearest cliff shouts. He hears the first echo after 3s and the second echo 2s later. Calculate:
1)The speed of sound.
2) The distance of the other cliff from the person
The quality of a sound depends on the amplitude of wave.
Name the unit in which the loudness of sound is expressed.
Two musical notes of the same pitch and same loudness are played on two different instruments. Their wave patterns are as shown in figure.
How do they differ in
(a) loudness,
(b) pitch and
(c) quality
Name the characteristic of the sound affected due to a change in its
(a) amplitude (b) waveform (c) frequency.
- Which of the following quality determines the loudness of a sound wave?
- wavelength
- frequency and
- amplitude
- How is loudness related to the quantity mentioned above in part (a)?
Name the unit in which loudness of sound is measured.
What determines the pitch of a sound?
What does the intensity of sound depend upon?
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
