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प्रश्न
Name the characteristic of sound in relation to its waveform.
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उत्तर
The characteristic of sound in relation to its waveform is quality or timbre.
संबंधित प्रश्न
Name the principle on which a soundboard works.
What is the shape of a soundboard kept behind the speaker on the stage of a big hall ?
Explain how is the principle of echo used by
(a) The bat during its flight at night,
(b) The dolphin to locate small fish as its prey.
A cork piece is floating on the surface of the water in a pond. A piece of pebble is dropped into the water. What will be your observation?
A type of electromagnetic wave has a wavelength of 50 Å. Name the wave and state one use of this type of wave.
(i) A man stands at a distance of 68 m from a cliff and fires a gun. After what time interval will he hear the echo, if the speed of sound in air is 340 ms−1?
(ii) If the man had been standing at a distance of 12 m from the cliff would he have heard a clear echo?
Explain reflection at the boundary of a rarer medium.
