The table gives the wavelengths in a vacuum of three electromagnetic waves.
| Wave | Wavelength |
|---|---|
| P | 0.020 m |
| Q | 0.0050 m |
| R | 0.010 m |
Which list gives the waves in order of increasing frequency?
P, Q, R
P, R, Q
Q, R, P
R, P, Q
84 exam-style questions on Edexcel GCSE Physics 5.2 The electromagnetic spectrum, covering 5.2.1 Electromagnetic waves and refraction in glass (core practical), 5.2.2 Groups of the electromagnetic spectrum, 5.2.3 Wavelength-dependent behaviour of EM waves, and 5.2.4 Velocities of EM waves in different substances. Each one has a worked solution and a mark scheme showing where the marks go.