Microphones convert sound energy into electrical energy. Speakers convert electrical energy into sound energy.
Consider the following statements about the microphone and the speaker of a mobile phone : 1. The microphone converts sound to a mechanical signal. 2. The microphone converts sound to an electrical signal. 3. The speaker converts a mechanical signal to sound. 4. The speaker converts an electrical signal to sound. Which of the statements given above are correct?
Asked in UPSC CDS 1 2023 · Topic: Sound (Musical Instruments: Principles of Sound Production)
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