Reflection of Light - TeacherTube · 2018. 7. 25. · specular reflection . diffuse reflection ....
Transcript of Reflection of Light - TeacherTube · 2018. 7. 25. · specular reflection . diffuse reflection ....
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Reflection of Light
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light and matter
exhibit properties of
both
waves & particles
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Light is
Quantum Vector Field
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Light has
multiple personality
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https://micro.magnet.fsu.edu/
wave-particle duality of light
phenomena: when light hits the interface
of two dissimilar media
reflection particle property wave property
refraction particle property wave property
wave property interference
diffraction wave property
polarization wave property
photoelectric effect particle property
http://hyperphysics.phy-astr.gsu.edu/
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angle of incidence ∠ i
angle of reflection ∠ r
incident ray
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law of reflection
if the incident beam falls along the normal, the ray reflects back along the normal
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law of reflection
if the incident beam falls at an acute angle, angle of incidence = angle of reflection
i r ∠i = ∠r < 90º
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law of reflection
incident and reflected beams are coplanar
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mirror reflection
specular reflection
diffuse reflection
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reflection of plane wavefront
incident wavefront
reflected wavefront
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source
reflection of circular wavefront
incident wavefront
reflected wavefront
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light scattering corresponds to
diffuse reflection
wavelength changes
frequency changes
energy changes
intensity changes
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http://images.tutorvista.com/
http://www.olympusmicro.com/
examples of light scattering in practical life
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specular reflection diffuse reflection
takes place at glossy surfaces takes place at rough/matte surfaces
parallel incident beam is reflected as parallel beam
parallel incident beam is reflected as deviated irregular tragectory
image formation no image formation
corresponds to the color of the light source gives color of the object
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https://en.wikipedia.org/wiki/Reflection_(physics)
reflected beam travels out in the same direction of the incident beam
specially constructed reflection system
prime principle:
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https://en.wikipedia.org/wiki/Retroreflector https://en.wikipedia.org/wiki/Reflection_(physics)
diverse mechanism of retroreflection
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https://spie.org/
useful links
http://www.physicsclassroom.com/
http://hyperphysics.phy-astr.gsu.edu/
http://webs.morningside.edu/slaven/Physics/uncertainty/uncertainty2.html
https://www.sciencedaily.com/terms/wave-particle_duality.htm
http://www.atoptics.co.uk/
https://www.boundless.com/physics/textbooks/boundless-physics-textbook/