NDA2022General AbilityGeneral ScienceActual
A microphone converts
Options
- Aelectrical signals to sound waves
- Bsound waves to electrical signals
- Cmicrowaves to sound waves
- Dsound waves to microwaves
Correct answer
A. electrical signals to sound waves
Step-by-step solution
A microphone converts sound into electrical current. The device is an acoustic-to-electric transducer. Sound is first converted to mechanical motion by means of a diaphragm, the motion of which is then converted to an electrical signal.