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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
Select the correct alternative :
Sound travels the fastest in
Name two sources of sound.
A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What is the time interval between successive compressions from the source?
The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
What should an object do to produce sound?
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.
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?
You and your friend are on the moon. Will you be able to hear any sound produced by your friend?
Infrasound can be heard by
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.
