Three loudspeakers vibrate at different frequencies of 12 Hz, 15 kHz15\text{ kHz}15 kHz, and 35 kHz35\text{ kHz}35 kHz.
Which row in the table shows whether the vibrations from each loudspeaker can be heard by a healthy human?
| 12 Hz | 15 kHz15\text{ kHz}15 kHz | 35 kHz35\text{ kHz}35 kHz | |
|---|---|---|---|
| A | no | yes | no |
| B | no | no | yes |
| C | yes | yes | no |
| D | yes | no | yes |
Row A
Row B
Row C
Row D
295 exam-style questions on CIE IGCSE Physics Sound, covering Sound. Each one has a worked solution and a mark scheme showing where the marks go.