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प्रश्न
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give reason for your answer.
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उत्तर १
उत्तर २
Because their waveforms are different, yes, their quality is different.
संबंधित प्रश्न
Name the phenomenon that causes a loud sound when the stem of a vibrating tuning fork is kept pressed on the surface of a table.
If a drum is beaten hard, its loudness ................
Sound can not travel in
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)?
Why is the loudness of the sound heard by a plucked wire increased when it is mounted on a sound board?
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(i) Name the characteristics of sound associated with the above obervation.
(ii) Give a reason for the above observation.
Explain the following and illustrate your answer by drawing appropriate diagram:
Frequency
Explain the following and illustrate your answer by drawing appropriate diagram:
Quality of a musical note.
Name musical instrument, one in each case, which produces its notes by using the following. In each case state the method used to produce notes of different pitches and loudness.
(a) A vibrating string.
(b) A vibrating column air.
(c) Vibration of any other body.
Give scientific reason for the following:
When a nail is hammering appears to get higher and higher in pitch.
Name the factors which determine the pitch of a note.
How do you account for the fact that two strings can be used to give notes of the same pitch and loudness but of different quality?
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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The frequency of the stretched string of a fixed length is f when it is plucked in the middle. Where should it be plucked so that string vibrates with frequency (i) 2f, (ii) 3f?
Draw diagrams to show these vibrations and name them.
The diagram below shows three ways in which the string of an instrument can vibrate.
(i) Which of the above diagrams shows the fundamental note?
(ii) Which has the frequency 4 times that of the fundamental?
(iii) State the ratio between the frequency of the first and second.
Give a scientific reason.
The sounds generated by a tabla and a sitar are different.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
