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प्रश्न
The region in a sound wave, with higher pressure and density, is called ______ and that with low pressure and density is called ______.
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उत्तर
The region in a sound wave, with higher pressure and density, is called compression and that with low pressure and density is called rarefaction.
संबंधित प्रश्न
Explain how sound is produced by your school bell.
Fill in the blank.
Sound is produced when a body ______.
The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
Can sound travel through (a) iron, and (b) water?
What is the general name of the waves consisting of :
(a) compressions and rarefactions?
(b) crests and troughs?
What will be the change in the wavelength of a sound wave in air if its frequency is doubled?
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?
The total number of compressions and rarefactions produced per second in a sound wave is 1000. The frequency of the sound wave is __________.
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 |
Write the answer in your own words.
What is meant by vibration?
