everyday science MCQ #5528

In the microphone used in a public address system:

everyday science MCQ #5528

  1. Question 1

    Q1. In the microphone used in a public address system:

    • A) Sound waves are converted into electric signals which are amplified and transmitted
    • B) Sound waves are directly transmitted
    • C) Electric signals are first converted into sound waves
    • D) Amplification is not required

    Answer: Sound waves are converted into electric signals which are amplified and transmitted

    Explanation: A microphone converts sound waves (acoustic energy) into electrical signals via electromagnetic induction or capacitance; these signals are then amplified and broadcast through speakers.