Physics · Sound
पराश्रव्य तरंगों (अल्ट्रासोनिक वेव्स) की आवृत्ति विशिष्ट रूप से होती है:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1सटीक 10 kHz
- 220 Hz और 20 kHz के बीच
- 320 kHz से ऊपर✓
- 420 Hz से नीचे
सही उत्तर देखें
20 kHz से ऊपर
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