Science · Physics
20 Hz से नीचे की आवृत्ति वाले ध्वनि तरंगों को क्या कहते हैं?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1अवश्रव्य तरंगें✓
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- 4विद्युत चुम्बकीय तरंगें
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