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प्रश्न
Is sound a form of energy?
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उत्तर
Yes, Sound is form of energy.
संबंधित प्रश्न
Distinguish between loudness and intensity of sound.
A stone is dropped on the surface of water in a pond. Name the type of waves produced.
Explain meaning of the terms compression and rarefaction in relation to a longitudinal wave.
An observer X is on an island 5500 m from a vertical cliff on the shore. A ship Y is anchored between the island and the Cliff. A blast on the ship’s siren is heard twice by X, the interval being 5s. [Velocity of sound = 330 ms−1]
(i) Find the distance of the ship from the island.
(i) Find the distance of the cliff from the ship.
Give a scientific reason.
If you were both on the moon, your friend will not be able to hear you call.
Can we produce sound in vacuum?
A person hearing at one end of a long metal bar hears two distinct sounds when the other end is struck with a stone. Explain, giving scientific reasons
Match the following.
| Ultrasonics | Frequency below 20Hz |
| Speed of sound in air | Needs material medium |
| Infrasonics | 330ms-1 |
| Sound propagation | Frequency more than 20000 Hz |
Name two musical instruments which produce sound by vibrating strings.
