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गूंज कैसे होती है?

दर्पण छवियों प्रवाह और प्रकाश वापस भेज देंगे । दीवारें भी आवाजें वापस भेजती हैं । यदि आप एक उच्च दीवार या एक बड़ी चट्टान से थोड़ा दूर खड़े हैं, तो आप अपनी आवाज वापस कुछ सेकंड बाद कताई सुनेंगे ।

यदि एक ध्वनि तरंग एक दीवार या एक उच्च और व्यापक रॉक सतह मुठभेड़ों, यह अपने स्रोत की ओर पीछे rotates । कि कैसे गूंज होता है । यदि निकाले गए ध्वनि कम है और ध्वनि तरंगों को सामान्य रूप में बैटरी तक पहुँचने, गूंज स्पष्ट रूप से सुना है । ध्वनि के निशान कान में 1/10 सेकंड के लिए रहते हैं ।

क्योंकि हवा में ध्वनि की गति ३४० मीटर प्रति सेकंड है, ऑडियो स्रोत और बैटरी के बीच की दूरी के लिए एक गूंज होना चाहिए ंयूनतम 17 मीटर ।

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