Light of frequency 5.0 × 1014 Hz travels through the glass viewing port of an underwater camera and passes into the surrounding water. It meets the glass-water boundary at an angle to the normal.
| Medium | Speed of light |
|---|---|
| Glass | 2.0 × 108 m s-1 |
| Water | 2.25 × 108 m s-1 |
Explain how the wavelength and the direction of the light change as it passes from the glass into the water. Use calculations in your answer.
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.