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प्रश्न
Name four ways in which sound can be produced.
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उत्तर
Sound can be produced by the following methods:
(i) By vibrating strings (e.g., sitar)
(ii) By vibrating air column (e.g., flute)
(iii) By vibrating membranes (e.g., drum)
(iv) By vibrating plates (e.g., cymbal)
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संबंधित प्रश्न
Describe an experiment to show that each source of sound is a vibrating body.
What should an object do to produce sound?
Describe a simple experiment to show that the prongs of a sound producing tuning fork are vibrating.
A sound producing body is at considerable distance from a man. There can be four different media W, X, Y and Z between the sound producing body and the man. The medium X brings the sound to man most quickly whereas medium Z takes the maximum time. The time taken by medium W in bringing sound to man is less than that of X but more than that of Z. The medium Y, however, fails to bring the sound from the sound producing body to the man. Which medium could be the one :
(a) having on fixed shape and no fixed volume?
(b) having a fixed volume but no fixed shape?
(c) having the same composition as that on the moon?
(d) having a fixed shape and a fixed volume?
A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing rang. This note must then be passing through.
In the sound wave produced by a vibrating turning fork shown in the diagram, half the wavelength is represented by :
Figure X shows a trace of a sound wave produced by a particular tuning fork :
(a) On the graph paper given in Figure Y, draw a trace of the sound wave which has a higher frequency than that shown in figure X.
(b) On the graph paper show in Figure Z, draw a trace of the sound wave which has a larger amplitude than that shown in Figure X.
Medium is ______ for generation of sound.
Match the following:
| Human larynx | Vibrations of metal arms |
| Loudspeaker | Vibrations in air column |
| Jal-Tarang | Vibrations in vocal cords |
| Tuning fork | Vibrations in strings |
| Sitar | Vibrations of screen |
You and your friend are on the moon. Will you be able to hear any sound produced by your friend?
