Mathematics · Speed, Time and Distance
For a given medium, a sound wave has a frequency of 3 kHz and a wavelength of 15 cm. How much time will it take to travel 9 km?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 118 seconds
- 215 seconds
- 325 seconds
- 420 seconds✓
Correct answer
20 seconds
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