A series of free GCSE/IGCSE Physics Notes and Lessons.
The following diagram shows how light is reflected in a mirror. The image is virtual, upright and the same size as the object. Scroll down the page for more examples and solutions.
Describe how waves can be reflected, absorbed or transmitted at the boundary between two different materials.
How to construct ray diagram to illustrate the reflection of a wave at a surface.
Refraction of Waves
What is meant by refraction?
Explain how refraction is due to changes in the speed of waves as they change from one medium to another?
Construct ray diagrams to show refraction of a wave.
Use wavefront diagrams to explain refraction in terms of changes of speed.
The following diagram shows how light is reflected in a mirror. The image is virtual, upright and the same size as the object. Scroll down the page for more examples and solutions.
Describe how waves can be reflected, absorbed or transmitted at the boundary between two different materials.
How to construct ray diagram to illustrate the reflection of a wave at a surface.
What is meant by refraction?
Explain how refraction is due to changes in the speed of waves as they change from one medium to another?
Construct ray diagrams to show refraction of a wave.
Use wavefront diagrams to explain refraction in terms of changes of speed.
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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