Mathematics · Waves
A source producing sound of frequency 1280 Hz is moving with a speed of 36 km/h towards a distant observer. The speed of sound in air is 330 m/s. If the observer moves towards the source with a speed of 72 km/h, the frequency of sound as heard by the observer is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11240 Hz
- 21297 Hz
- 31317 Hz
- 41400 Hz✓
Correct answer
1400 Hz
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