MCQOPTIONS
Saved Bookmarks
| 1. |
A microphone converts: |
| A. | Sound energy into mechanical energy in stereo system |
| B. | Sound energy into electrical energy in public address system |
| C. | Electrical energy into sound energy in ordinary telephone |
| D. | Microwave energy into sound energy in a mobile phone |
| Answer» C. Electrical energy into sound energy in ordinary telephone | |