ATPL: Which is the audible range to human hearing?
Domanda 7, Human Performance and Limitations - ATPL - Airline Transport Pilot license
| Between 20 Hz and 20 KHz |
| Between 20 Hz and 20 MHz |
| Between 20 KHz and 20 KHz |
| Between 20 MHz and 20 000MHz |
| Between 20 Hz and 20 KHz |
| Between 20 Hz and 20 MHz |
| Between 20 KHz and 20 KHz |
| Between 20 MHz and 20 000MHz |
