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प्रश्न
How is sound produced? Explain with the help of an example.
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उत्तर
Sound is produced when an object vibrates and produces continuous compression and rarefaction.
Example: The sound of our voice is produced by the vibrations of two vocal cords in our throat caused by air passing through the lungs.
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संबंधित प्रश्न
Fill in the blank.
Sound is produced when a body ______.
Describe an experiment to show that each source of sound is a vibrating body.
What minimum distance is required between the source of sound and the reflecting surface to hear an echo ? Give reason.
What is the general name of the waves consisting of :
(a) compressions and rarefactions?
(b) crests and troughs?
Name the device which is used to produce sound in laboratory experiments?
State whether the following statement is true or false :
Sound produced by a vibrating body travels to our ears by the actual movement of air.
Name four ways in which sound can be produced.
How does sound from a sound producing body travel through air to reach our ears? Illustrate your answer with the help of a labelled diagram.
A key of mechanical piano is first struck gently and then struck again but much harder this time. In the second case :
The total number of compressions and rarefactions produced per second in a sound wave is 1000. The frequency of the sound wave is __________.
