पराश्रव्य तरंगे व ध्वनी तरंगे है जिनकी आवृति होगी?

Asked Sep 10, 2023 Modified Sep 10, 2023 Viewed 0 times
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asked Sep 10, 2023 at 12:27
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20 किलो Hz से अधिक
answered Sep 10, 2023 at 12:27

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