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Physics

Light and the Electromagnetic spectrum (Paper 1)

QuestionAnswer
What is total internal reflection? When light is completely reflected back at a boundary between 2 mediums
What is the critical angle? The angle of incidence which causes the angle of reflection to be 90 degrees
What determines the colour of visible light waves? The wavelength and frequency of the light waves
What colour of visible light has the highest frequency? Blue
What colour of visible light has the largest wavelength? Red
What is meant by the term "specular reflection" Rays are reflected from a smooth surface in a single direction
What is meant by the term "diffuse reflection" Reflection from a rough surface which causes scattering
How does a red colour filter work? Absorbs all wavelengths of light other than those in the red range of the spectrum
Created by: user-1956972
 

 



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