Essential University Physics: Volume 1 (4th Edition)

Published by Pearson
ISBN 10: 0-134-98855-8
ISBN 13: 978-0-13498-855-9

Chapter 14 - Exercises and Problems - Page 272: 66


The answer is below.

Work Step by Step

a) Since the intensity is inversely related to the square of the distance, it follows that if the distance is doubled, the intensity is 1/4 as much. b) We use the equation for the decibel level: $ \beta = 10log{(1/4)}\\ \beta = -6 $ Thus, the decibel level is decreased by 6 decibels.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.