Sound communication started for the first time by start - Practice (English) | ObjectiveMcq

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Sound communication started for the first time by start - Practice (English) | ObjectiveMcq

PracticeElectrical And ElectronicsAnalog CommunicationSound communication started for the...

Analog Communication Electrical And ElectronicsEasy

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Sound communication started for the first time by starting

Correct Answer:

(B) Telephony

Explanation:

Telephony

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