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A railway engine moving with a speed of ...

A railway engine moving with a speed of 60 m/s passes in front of a stationary listener. The real frequency of the whistle is 400 Hz. Calculate the apparent frequency heard by the listener
(a) When the engine is approaching the listener
(b) When the engine is moving away from listener (V=340 m/s)

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AI Generated Solution

To solve the problem of finding the apparent frequency heard by a stationary listener when a railway engine passes by, we will use the Doppler effect formula. Let's break it down step by step. ### Given Data: - Speed of the engine (source), \( V_s = 60 \, \text{m/s} \) - Real frequency of the whistle, \( F = 400 \, \text{Hz} \) - Velocity of sound in air, \( V = 340 \, \text{m/s} \) ### (a) When the engine is approaching the listener: ...
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