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प्रश्न
The propagation of sound does not occur through a ______.
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उत्तर
The propagation of sound does not occur through a vacuum.
संबंधित प्रश्न
Cite an experiment to show that sound needs a material medium for its propagation.
Name the type of waves which are used by astronauts to communicate with one another on moon (or in outer space).
Why cannot a sound be heard on the moon? How do astronauts talk to one another on the surface of moon?
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.
Describe in brief, with the aid of a lebelled diagram, an experiment to demonstrate that a material medium is necessary for propagation of sound.
Flash of lightning reaches earlier than the sound of thunder. Explain the reason.
When we hear a sound, does any part of our body vibrate? Name the part.
the speed of sound in air is 331 ms-1 at ______ and ______ at 22°C.
Rarefactions are the regions of ______ where particles are spread apart.
The small to and fro motion is called vibration.
