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As we know from Doppler’s Effect, f_apparent = f0 [v + v0 / v - vs]. What is the apparent frequency?

1. 448 Hz
2. 400 Hz
3. 340 Hz
4. 220 Hz

Correct answer: 448 Hz

Solution

The apparent frequency is calculated using the Doppler Effect formula. Without specific values for the source velocity, observer velocity, and actual frequency, the problem seems to suggest that the answer is directly given as 448 Hz.

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