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प्रश्न
What is the shape of a soundboard kept behind the speaker on the stage of a big hall ?
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उत्तर
Soundboard is a concave board that is kept behind the speaker on the stage of a big 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?
A wave passes from one medium to another medium. Mention one property of the wave out of speed, frequency or wavelength which does not change.
State two factors on which the speed of a wave travelling in a medium depends.
State two differences between the light and sound waves.
What is the condition necessary for an echo to be heard distinctly?
What is a stethoscope ? Name the principle on which a stethoscope works.
What is meant by echo depth sounding?
What are fishing boats?
Explain reflection at the boundary of a rarer medium.
