A transmitter sends radio waves through air at a speed of 3.0 × 108 m/s.
The frequency is increased from 1.0 MHz to 2.0 MHz, while the wave speed remains constant.
The table shows four possible changes in wavelength.
| Change | Wavelength at 1.0 MHz in m\mathrm{m}m | Wavelength at 2.0 MHz in m\mathrm{m}m |
|---|---|---|
| W | 150 | 75 |
| X | 300 | 150 |
| Y | 300 | 600 |
| Z | 300 | 300 |
Which change in wavelength is correct?
Change W
Change Z
Change Y
Change X
112 exam-style questions on Edexcel GCSE Physics 4.1 Wave properties, covering 4.1.1 Waves transfer energy and information, 4.1.2 Frequency, wavelength, amplitude, period and wavefronts, 4.1.3 Longitudinal and transverse waves, 4.1.4 The wave speed equations, 4.1.5 Measuring wave velocity, and 4.1.6 Calculating depth or distance from waves. Each one has a worked solution and a mark scheme showing where the marks go.