A microphone converts:
(a) electrical energy into sound energy in ordinary telephone
(b) microwave energy into sound energy in a mobile phone
(c) sound energy into mechanical energy in a stereo system
(d) sound energy into electrical energy in public address system

Academic Physics NCERT Class 9

A microphone converts sound energy into electrical energy in public address system.

So, option (d) is correct.

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Updated on: 10-Oct-2022

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