An interactive exhibit has three tone channels. The table gives the time taken for one complete vibration from each channel.
| Channel | Time for one complete vibration (s) |
|---|---|
| R | 0.025 |
| S | 0.000030 |
| T | 0.10 |
Which channel produces a sound within the typical hearing range of a young person?
Channel S
Channels R and S
Channel T
Channel R
112 exam-style questions on Edexcel GCSE Physics 4.3 Sound, ultrasound and infrasound, covering 4.3.1 Sound waves, vibrations and the human ear, 4.3.2 Ultrasound and infrasound, 4.3.3 Uses of ultrasound and infrasound, and 4.3.4 Sound waves passing between media. Each one has a worked solution and a mark scheme showing where the marks go.