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प्रश्न
Why are the ceilings of concert halls curved?
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उत्तर
Generally, the ceilings of concert halls, are curved so that sound after reflection reaches all corners of the hall. Sometimes a curved sound board may be placed behind the stage so that the sound, after reflecting from the soundboard, spreads evenly across the width of the hall.
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संबंधित प्रश्न
A certain sound has a frequency of 256 hertz and a wavelength of 1.3 m.
1) Calculate the speed with which this sound travels
2) What difference would be felt by a listener between the above sound and another sound traveling at the same speed, but of wavelength 2.6 m?
Define amplitude term in relation to a wave.
Define wave velocity term in relation to a wave.
What is the shape of a soundboard kept behind the speaker on the stage of a big hall ?
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(b) The dolphin to locate small fish as its prey.
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What do you understand by the ‘Echolocation system of Dolphins’?
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