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Sound — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceSound4 Marks
Question
How can reverberations in a big hall or auditotium be reduced?`
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Answer

Reverberations in a big hall or auditorium can be reduced by the following methods:
  1. Panels made of sound absorbing materials are put on the walls and ceilings of hall and auditorium.
  2. Carpets are put on the floor to absorb sound and reduce reverberations.
  3. Heavy curtains are put on doors and windows to absorb sound and reduce reverberations.
  4. The seats in the hall are made from materials having sound absorbing properties.

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