Edexcel IGCSE Physics 3.9 Reflection and Refraction Questions

Reflection returns a wave from a boundary. Refraction changes a wave’s direction as it enters a different medium, as light does when entering an optical fibre.

Exam points

Identify refraction when light changes direction as it passes from air into an optical fibre.

[Maximum number: 1]

This question is about optical fibres.

A ray of light passes from air into a glass optical fibre.

Diagram 1 shows the path of the ray of light after it has passed through the boundary between air and the optical fibre.

State the name of the wave behaviour responsible for the path of the ray of light as it passes from air into the optical fibre.

All question bank results loaded

Edexcel IGCSE Physics 3.9 Reflection and Refraction Questions question 1