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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.
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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
Fill in the blank.
Sound can travel in a ______
Fill in the blank.
Sound requires a ________ for propagation.
Which of the following terms apply to sound waves in air and which to water waves?
Transverse, Rarefaction, Trough, Crest, Compression, Longitudinal
Define the terms 'frequency', 'wavelength' and 'velocity' of a sound wave. What is the relation between them?
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.
Complete the following sentences :
When sound travels in a medium, the particles of medium ___________ but the disturbance ___________.
Can sound propagate in solids and liquids?
Do all animals have same ranges of audible frequencies?
______ 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.
