   Chapter 14, Problem 10P

Chapter
Section
Textbook Problem

A person standing 1.00 m from a portable speaker hears its sound at an intensity of 7.50 × 10−3 W/m2. (a) Find the corresponding decibel level. (b) Find the sound intensity at a distance of 35.0 m, assuming the sound propagates as a spherical wave. (c) Find the decibel level at a distance of 35.0 m.

(a)

To determine
The intensity level corresponding to an intensity of 750×103W/m2 .

Explanation

Given Info: The intensity of sound is 750×103W/m2 and reference intensity is 1.0×1012W/m2

Formula for intensity level of a sound,

β=10log(II0)

• I0 is the reference intensity.
• I is the intensity of a sound.

Substitute 750×103W/m2 for I and 1

(b)

To determine
Sound intensity at a distance of 35m.

(C)

To determine
The sound intensity level at a distance of 35 m.

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Find more solutions based on key concepts 