This question is about the behavior of light waves during reflection and transmission.
A ray of light reflects from a flat plane mirror.
State how the angle of reflection compares to the angle of incidence. Choose from the following terms:
A micro-display is positioned at a distance of 16.5 cm16.5\text{ cm}16.5 cm in front of a vertical plane mirror. Determine the distance between the micro-display and its image.
The image formed by a plane mirror is a virtual image. State how a virtual image differs from a real image in terms of what happens to the light rays.
Endoscopes use bundles of flexible optical fibres to transmit light and capture high-resolution images from inside the human body.
State the name of the wave phenomenon that allows light to be guided along the core of an optical fibre without escaping through the sides.
State two conditions required for this phenomenon to occur.
High-speed communication networks utilize optical fibres rather than traditional copper cabling. Suggest one physical advantage of using optical fibres instead of copper wires for transmitting signals.
30 exam-style questions on Edexcel IGCSE Physics Light and sound. Each one has a worked solution and a mark scheme showing where the marks go.