Concept explainers
The number of beats heard.
Answer to Problem 44P
13 beats.
Explanation of Solution
Given:
Each of flutes having the frequency ( f ) = 262 Hz.
Temperature
Temperature
Formula used:
The frequency and velocity are related as,
Calculation:
Number of beats can be determined by the given frequency with respect to the temperatures and speed of the sound.
The speed can be calculated by using the formula,
Velocity at temperature
Velocity at temperature
The frequency ( f ) can be determined as,
Since, f25 = 262 Hz.
The number of beats heard is (262-249) = 13
Conclusion:
The number of beats heard is 13 at temperatures 50C and 250C and with the identical flutes each of play is 262 Hz.
Chapter 12 Solutions
Physics: Principles with Applications
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