Mathematics · Acoustics
पराबैंगनी/पराश्रव्य तरंगों (ultrasonic waves) की आवृत्ति कितनी होती है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 120 Hz से कम
- 220 Hz से 20,000 Hz
- 320,000 Hz से अधिक✓
- 450,000 Hz से अधिक
सही उत्तर देखें
20,000 Hz से अधिक
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