Wednesday 23 February 2011

5CH - Refraction past papers





Practised using the extended refraction formula today. There are three things that change when light enters a more dense material - the direction (angle), the wavelength and the speed. This is reflected in the equation we used today. Remember the more dense medium goes on the bottom of the equation for all values.

Also need to know the differences between blue and red light. Red light refracts less than blue because blue light has a greater refractive index.

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