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प्रश्न
How does the sound produced by a vibrating object in a medium reach your ear?
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उत्तर
When an object vibrates, it also sets the particles of the medium around it vibrate. These particles do not travel all the way from the vibrating object and reach our ears; rather, the particles of the medium in contact with the vibrating object get displaced from their equilibrium position, which exerts a force on the adjacent particle and displaces it as well, and the initial particles return to their original position. This process continues in the medium until the sound reaches our ears. The disturbance created by a source of sound in the medium travels through the medium and not the particles of the medium.
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संबंधित प्रश्न
Describe an experiment to show that each source of sound is a vibrating body.
Name the physical qantity whose SI unit is 'hertz'.
Name the device which is used to produce sound in laboratory experiments?
What will be the change in the wavelength of a sound wave in air if its frequency is doubled?
Name four ways in which sound can be produced.
Give reason for the following :
In most of the cases, we cannot see the vibrations of a sound producing object with our eyes.
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.
Write the answer in your own words.
What is meant by vibration?
You and your friend are on the moon. Will you be able to hear any sound produced by your friend?
Suppose a stick is struck against a frying pan in vacuum. Will the frying pan vibrate? Will we be able to hear the sound? Explain.
