The Table shows the typical wavelengths of four types of electromagnetic radiation, W, X, Y and Z.
Table
| Radiation | Typical wavelength in m\text{m}m |
|---|---|
| W | 1.0 × 10-2 |
| X | 5.0 × 10-7 |
| Y | 1.0 × 10-5 |
| Z | 1.0 × 10-10 |
Put the four types of radiation in order of increasing frequency.
Radiation X is visible light.
Give the names of radiation W and radiation Y.
The speed of electromagnetic waves in a vacuum is 3.0 × 108 m/s.
Calculate the frequency of radiation X.
Radiation Y can enter the human eye.
Explain why humans cannot see radiation Y.
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.