A train moves towards a stationary observer with a speed of 34 m/s. The train sounds a whistle and its frequency registered by the observer is f1. If the train’s speed is reduced

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A train moves towards a stationary observer with a speed of 34 m/s. The train sounds a whistle and its frequency registered by the observer is f1. If the train’s speed is reduced
07
Nov
A train moves towards a stationary observer with a speed of 34 m/s. The train sounds a whistle and its frequency registered by the observer is f1. If the train’s speed is reduced A train moves towards a stationary observer with a speed of 34 m/s. The train sounds a whistle and its frequency registered [...]
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