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प्रश्न
Give scientific reasons:
As the sound wave propagates from one place to the other in air, the air itself is not required to move from one place to the other.
उत्तर
A vibrating object disturbs the air particles near it. The air particles get compressed as well as start vibrating and gain energy. These particles, vibrating about their mean position, then transfer their energy to the other layer of particles near to them. In this way, the region of compression and rarefaction are created and hence sound is produced. So, in sound production, only the transfer of energy of the vibrating particles takes place and not the transfer of particles themselves. So, yes we can say that as the sound wave propagates from one place to the other in the air, the air itself is not required to move from one place to the other.
संबंधित प्रश्न
A body vibrating with a time-period of `1/256` s produces a sound wave which travels in air with a velocity of 350 m/s. Calculate the wavelength.
Sound travels in air :
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Describe an experiment to prove that a material medium is necessary for the propagation of sound.
Can sound propagate in solids and liquids?
What is the approximate value of the speed of sound in air at N.T.P.?
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Can we hear sounds of frequencies:
More than 20 KHZ
______ is the number of vibrations of a particle in the medium, in one second
the speed of sound in air is 331 ms-1 at ______ and ______ at 22°C.
