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प्रश्न
Write the approximate value of the speed of sound in air.
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उत्तर
The speed of sound in air = 340 ms−1
संबंधित प्रश्न
Name the characteristic of sound in relation to its waveform.
Define amplitude term in relation to a wave.
State two factors on which the speed of a wave travelling in a medium depends.
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey
When a sound is made from a distance of 18 m, in front of a tall building, it is found to get repeated again. Which phenomenon is associated with this observation? Give a brief explanation of this phenomenon?
Why is an echo not heard when the distance between the source of sound and reflection body is less than 10 m?
Explain why, the ceilings of concert halls are curved.
Explain reflection at the boundary of a rarer medium.
