A beam of monochromatic light from an underwater laser rangefinder passes directly from water (n=1.33n = 1.33n=1.33) into a flat window made of dense flint glass (n=1.66n = 1.66n=1.66).
Explain what happens to the wavelength of this light wave as it enters the flint glass.
24 exam-style questions on Edexcel GCSE Physics 5.1 Reflection, refraction and lenses, covering 5.1.1 Reflection, refraction and total internal reflection, 5.1.2 Specular and diffuse reflection, 5.1.3 Colour of light: absorption and filters, 5.1.4 Lenses: power, focal length and shape, 5.1.5 Ray diagrams for converging and diverging lenses, and 5.1.6 Real and virtual images. Each one has a worked solution and a mark scheme showing where the marks go.