Mathematics · Waves and Sound
Two cars are approaching each other at an equal speed of 7.2 km/h. When they see each other, both blow horns having a frequency of 676 Hz. Calculate the beat frequency heard by each driver. [Take velocity of sound in air as 340 m/s]
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 116 Hz
- 212 Hz
- 38 Hz✓
- 44 Hz
Correct answer
8 Hz
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