In large auditoriums, a curved board (soundboard) is often fixed behind the speaker on stage. What is the…

In large auditoriums, a curved board (soundboard) is often fixed behind the speaker on stage. What is the main function of this board?
  1. To absorb unwanted noise from the audience
  2. To reflect sound uniformly towards all audience members
  3. To increase the pitch of the speaker's voice
  4. To stop sound waves from reaching the back wall

Solution

Curved soundboards reflect sound waves evenly across the hall so that the speech is clearly audible to everyone.

Asked in: Homi Bhabha Practice

Practice more Sound questions on Aicharya