Flashcards
reflection and refraction
Cards in this deck (11)
- 1what 3 things can happen when a wave arrives at different boundaries or mediumswa ve might be
absorbed ( energy from wave is transferred to that materials energy source)
transmitted - wave enters the material and carries on travelling passing out to the other side
reflected - never enters the material - 2which three of these things happens are determined by...wavelength of the wave involved
properties of the two materials - 3what can we use to show reflection taking placeray diagrams
angle of incidence = angle of reflection - 4point of incidencepoint where incoming ray touches the boundary
- 5how can we find the angle of refractionby measuring the angle of incidence (between the incoming ray and the Normal)
- 6what is specular reflectionwaves reflected in a single direction by a smooth surface
Normal are parallel
Means you get a clear reflection eg when light is reflected by a mirror - 7diffuse reflectionoccurs when wave are reflected by a rough surface (eg paper) and waves are reflected in all directions
- happens because the normal is different for each incident ray ( a ray will have a different angle of incidence) - 8LIGHT REFLECTED BY SOMETHING ROUGHthe surface looks matt and you don't get a clear refraction
- 9why cant you see a reflection of yourself on paperhas a rough surface
the boundary is all bumpy -
(normal will all be pointing at different directions - the light will be reflected in different direction s)
diffuse or scattered refection - 10REFRACTION OF LIGHT WAVESchange direction as they pass from one medium to another
- 11what happens whine you shine white light to a triangular prismwhite light ( contains all the wave lengths of visible light)
different colours will bend to different degrees- will all spread out
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- Physics Flashcards on reflection and refraction, created by Ellaine Wahome on 07/11/2021.
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- Ellaine Wahome
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