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polet [3.4K]
3 years ago
10

If you are at a train station and a train comes toward you, the train blows its whistle. as the train comes closer the whistle g

ets louder and as the train gets farther the whistle is quieter. What is this effect called?
Physics
1 answer:
Wittaler [7]3 years ago
4 0
This is called the Doppler Effect.
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<h3>Amplitude of the red colored wave</h3>

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From the graph, the amplitude of the red colored wave is 2.1 unit.

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