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प्रश्न
उत्तर
Quality of sound of the same pitch differs when produced by different instruments because of the difference in their waveforms. Different instrument emit different subsidiary notes due to the presence of mixture of subsidiary vibrations along with the principal vibration. The subsidiary vibrations present in the musical note make the wave form complex and thus we can easily distinguish between the sound so different instruments, though they may be of same pitch.
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संबंधित प्रश्न
In which units is the loudness of sound measured?
State the safe limit of sound level in terms of decibel for human hearing.
How is the pitch of sound in a guitar changed if (a) thin wire is used, (b) wire under less tension is used?
Two waves of the same pitch have amplitudes in the ratio 1 : 3 What will be the ratio of their
- loudness,
- pitch?
How does the wave pattern of a loud note differ from a soft note? Draw a diagram.
A man playing a flute is able to produce notes of different frequencies. If he closes the holes near his mouth, will the pitch of the note produced, increase or decrease? Give a reason.
A 0.6 m long stretched wire is made to vibrate in two different modes as shown in figure
(a)
(b)
(i) If the frequency of the note produced in (b) is n, what is the frequency in case (a)?
(ii) In which case (a) or (b), is the note louder? Give reasons.
(iii) In which case is the pitch higher? Give reason.
What does the intensity of sound depend upon?
The loudness of a sound depends on its pitch.
