   Chapter 14, Problem 62P

Chapter
Section
Textbook Problem

Two nearby trumpets are sounded together and a beat frequency of 2 Hz is heard. If one of the trumpets sounds at a frequency of 525 Hz, what are the two possible frequencies of the other trumpet?

To determine
The two possible frequencies of the other trumpet.

Explanation

Given Info: The beat frequency is 2 Hz and trumpet sound at a frequency is 525 Hz

Formula to calculate the frequency of the trumpet is,

f=f1+f2

• f is the frequency of the trumpet.
• f1 is the beat frequency.
• f2 is the trumpet sound’s frequency.

Substitute 2Hz for f1 and 525Hz for f2 to find f .

f=2Hz+525Hz=527Hz (1)

Formula to calculate the frequency of the trumpet is,

f=f2f1

• f is the frequency of the trumpet

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