A person is testing an audio generator that produces sound waves of various frequencies. Only one of the produced frequencies is within the typical range of human hearing.
Which frequency is the person able to hear?
15 Hz15\text{ Hz}15 Hz
18 Hz18\text{ Hz}18 Hz
15 kHz15\text{ kHz}15 kHz
28 kHz28\text{ kHz}28 kHz
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.