Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 21 - Reading Check Questions (Comprehension): 6

Answer

The threshold of hearing, the lowest-intensity of sound we can hear, has a sound level of zero decibels.

Work Step by Step

This is discussed on page 394, and shown in Table 21.1.
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