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The sound of frequency greater than 20,000 Hz is called .... 20,000 112 से अधिक आवृति की ध्वनि कहा जाता है। Positive electrode is called घनात्मक इलेक्ट्रोड को कहते हैं। d.​
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The sound of frequency greater than 20,000 Hz is called ....

20,000 112 से अधिक आवृति की ध्वनि
कहा जाता है।
Positive electrode is called
घनात्मक इलेक्ट्रोड को
कहते हैं।
d.​

User Alan Kay
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Answer:

ultra sound... follow me

User Mayankbatra
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