Physics · Sound Waves
अश्रव्य ध्वनियों (Infrasonic sounds) की आवृत्ति कितनी होती है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 120 Hz से 20,000 Hz के बीच
- 220,000 Hz से अधिक
- 320 Hz से कम✓
- 420 Hz से अधिक
सही उत्तर देखें
20 Hz से कम
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