Physics · Acoustics
पराश्रव्य तरंगें (Ultrasonic waves) वे ध्वनि तरंगें हैं जिनकी आवृत्ति होती है:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11,000 Hz और 20,000 Hz के बीच
- 220 Hz और 1,000 Hz के बीच
- 320 kHz से अधिक✓
- 420 Hz से कम
सही उत्तर देखें
20 kHz से अधिक
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