What is the frequency heard by a person driving at
Edith Mayer
Answered question
2022-05-20
Answer & Explanation
Julius Johnston
Beginner2022-05-21Added 17 answers
We use the formula
Here, '' means observed frequency, 'v' means speed of sound in air, '' means frequency of the source (blowing factory whistle) and '' is the speed of the person moving towards the whistle.
The velocities are removed since the person is travelling in the direction of the whistle.
The individual is moving closer, which causes the observed frequency to be greater than the whistle's frequency, resulting in a smaller observed wavelength. Wavelength is inversely proportional to frequency based on this formula (). So frequency should be higher.
You ought to be able to determine the solution by substituting the values.
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