Answered: large auditoria, where even sound…

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 29P: An aircraft maintenance technician walks past a tall hangar door that acts like a single slit for...

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In large auditoria, where even sound coverage and speech intelligibility is important:
a. concave, reflective surfaces are usually useful because they can focus reflections and increase the level of direct sound at certain listener locations
b. concave, reflective surfaces are usually problematic because they can focus reflections at certain listener locations
c. it is usually best to make the rear wall of a material that is acoustically reflective because it can provide useful reflections to people sitting near the back
d. it is usually best to provide as much sound absorbing material as possible

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