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एक सव्रित्र द्विभुज A की आवर्ती 384 Hz है जब इसे एक दूसरे द्विभुज B के साथ कंपित किया जाता है तो 2 सेकंड में 6 विस्पंद सुनाई देते है B की आवर्ती क्या होगी

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प्रशन के अनुशार `|V_(A)-V_(B)|=3 Hz`
अतः `V_(B)-V_(A)=3Hz`
या `V_(A)-V_(B)=3Hz`
अतः `V_(B)=V_(A)+3 Hz`
या `V_(B)=V_(A)-3Hz`
अथार्त `V_(B)=384 Hz-3 Hz=387 Hz`
या `V_(B)=384 Hz-3 Hz=381 Hz` स्वरित्र द्विभुज B की आवर्ती या तो 371 Hz या 387 Hz होग

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