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प्रश्न
How can reverberations in a big hall or auditorium be reduced ?
उत्तर
Reverberations in a big hall or auditorium can be reduced by the following ways:
(i) Panels made of sound-absorbing materials should be placed on the walls and ceilings of hall and auditorium.
(ii) Carpets should be placed on the floor to absorb sound and reduce reverberations.
(iii) Heavy curtains should be used to close the doors and windows to absorb sound and reduce reverberations.
(iv) The seats in the hall should be made from materials having sound-absorbing properties.
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संबंधित प्रश्न
What is reverberation?
What name is given to the repetition of sound caused by the reflection of sound waves ?
Name the device used by doctors to listen to our heartbeats.
What is reverberation ? What will happen if the reverberation time in a big hall is too long ?
Consider the following sound waves marked A, B, C and D.
(a) Which two waves represent sounds of the same loudness but different pitch ?
(b) Which two waves represent sounds of the same frequency but different loudness ?
(c) State whether all these sound waves have been produced by the same vibrating body or different vibrating bodies ?
(d) Which vibrating body/bodies could have generated the sound waves shown here ?
Explain by giving a scientific reason.
The intensity of reverberation is higher in a closed and empty house.
Where and why are sound-absorbing materials used?
The repeated reflection that results in persistence of sound is called ______.
Why do we hear the sound produced by the humming bees while the sound of vibrations of the pendulum is not heard?
Why are the roots and walls of the auditorium covered with rough plaster?
