Starter quiz

  • The ray diagram shows what happens when a light wave meets a boundary from air to glass. 
Match the ray labels (A, B and C) to the names of the rays.
    The ray diagram shows what happens when a light wave meets a boundary from air to glass. Match the ray labels (A, B and C) to the names of the rays.
    • A
      reflected ray ✓
    • B
      refracted ray ✓
    • C
      incident ray ✓
  • The ray diagram shows what happens when a light wave meets a boundary from air to glass. 
Match the angle labels (a, b and c) to the names of the angles.
    The ray diagram shows what happens when a light wave meets a boundary from air to glass. Match the angle labels (a, b and c) to the names of the angles.
    • a
      angle of reflection ✓
    • b
      angle of incidence ✓
    • c
      angle of refraction ✓
  • When a ray hits a boundary between two media, it does not refract if the angle of incidence is ...
    •  ✓
    • 45°
    • 90°
  • The picture shows a laser beam hitting a boundary between air and a transparent solid. What is the angle of refraction?
    The picture shows a laser beam hitting a boundary between air and a transparent solid. What is the angle of refraction?
    • 30°  ✓
    • 40°
    • 50°
    • 60°
  • The picture shows a laser beam hitting a boundary between air and a transparent solid. What is the angle of reflection?
    The picture shows a laser beam hitting a boundary between air and a transparent solid. What is the angle of reflection?
    • 10°
    • 40°
    • 50°  ✓
    • 80°
  • The ray diagram shows refraction of a light wave across a boundary.
If the angle of incidence changes, which of the following shows the path that the wave could follow?
(original path shown in grey)
    The ray diagram shows refraction of a light wave across a boundary. If the angle of incidence changes, which of the following shows the path that the wave could follow? (original path shown in grey)

Attributions

  • Q1: Image is Edited screenshot of a simulation by PhET Interactive Simulations, University of Colorado Boulder, licensed under CC–BY–4.0 (https://phet.colorado.edu).

  • Q2: Edited screenshot of a simulation by PhET Interactive Simulations, University of Colorado Boulder, licensed under CC–BY–4.0 (https://phet.colorado.edu).

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