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Sound: Production of Sound — Science STD 7 — Question

Maharashtra BoardEnglish MediumSTD 7ScienceSound: Production of Sound2 Marks
Question
Loud speakers should not be put in congested areas.
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Answer

  1. The loudness or softness is indicated by the intensity of sound and sound level.
  2. By putting loud speakers in congested areas, the intensity of sound being more than 100 dB will cause ill effects like temporary deafness and a prolonged exposure can lead to permanent damage.

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