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A man stands on a railway crossing and w...

A man stands on a railway crossing and when a train approaches and recedes from him, he receives frequencies of 2.4 kHz and 1.8 kHz, respectively. Determine the velocity of the train. Take, Speed of sound in air = 320 m/s

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To solve the problem, we need to use the Doppler effect formula for sound waves. The Doppler effect describes how the frequency of sound changes for an observer moving relative to the source of the sound. ### Step-by-Step Solution: 1. **Identify the given data:** - Frequency when the train approaches (f₁) = 2.4 kHz = 2400 Hz - Frequency when the train recedes (f₂) = 1.8 kHz = 1800 Hz - Speed of sound in air (v) = 320 m/s ...
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