Different animals can detect different ranges of wavelengths of electromagnetic radiation.
The Table shows the range of wavelengths detected by the eyes of three animals.
Table
| Animal | Shortest wavelength detected in nm\text{nm}nm | Longest wavelength detected in nm\text{nm}nm |
|---|---|---|
| human | 400 | 700 |
| honeybee | 300 | 650 |
| goldfish | 350 | 750 |
Give the colour of light that humans can see but honeybees cannot see.
Some flowers have patterns that honeybees can see but humans cannot see.
Explain why. Use data from the Table in your answer.
Compare the range of wavelengths detected by a goldfish with the range detected by a human.
1 nm=1×10−9 m1\ \text{nm} = 1 \times 10^{-9}\ \text{m}1 nm=1×10−9 m. The speed of light is 3.0 × 108 m/s.
Calculate the frequency of light with a wavelength of 400 nm400\ \text{nm}400 nm.
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.