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Grade 12 Physics: Unit 4 - Light CA$11.54   Add to cart

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Grade 12 Physics: Unit 4 - Light

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Grade 12 Physics Unit 4 Notes on Light. This document contains the best possible explanation of derivations of this unit. Topics include the properties of light, refractive index, dispersion/diffraction, constructive/destructive interference, and young's double slit experiment.

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  • July 9, 2023
  • 7
  • 2022/2023
  • Interview
  • Unknown
  • Unknown
  • Secondary school
  • 12th Grade
  • Physics
  • 1
All documents for this subject (39)
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keyashokeen
Lighty

Basic Reflection Refraction
crestsandtroughs
normal
nwavefront w
Boundary
Li Lr n
n



Diamond total internalreflection Fiberoptics




Properties of Light
1 Inteference Fromthis we know light is a wave not a particle
Duality ofLight Lightcan be both a particle and wave


perpendicrofteenergiropogation
Particlesmoving wave transverse light
particles movingparallel to the energy propagation wave Longitudinal

Lighthas an inbuilt electric and magnetic fields1900 to the propagation of the waves not particles


The Electromagnetic spectrum 1 pm to m

a wavelength increasing 1 A lo on
Frequency decreasing
1 nm to m

t mm to om
1mm to 3m


fi

888
v


88888 888
velocityhastoremain

speedofallcolorsin
thespectrumisthe C 3xiosmis
same
nloxionkminr.io'kminr
no

, A wave is a moving disturbance that transportsenergy from one place to another but does not
necessarily transport matter


tray


wavefront
ya
wavefront




Ffyiles wants
second Hz

I Al true
timetakento iompleteonecycle s




f NI no ofcycles
totaltime for Ncyclesis
T
E

The frequency of a wave is the same as that of thesource it is not affected bychanges
in the speed or wavelength of the wave itI 1it
unison
the fastest lightcan
vacuumairas upperlimit
such 3xiosmis


Diamonds sparkle because
light spends more time in a diamond less speed than upper limit

they have a large
II.ggInisffmtaterialand


Light travels in straightlinesknown as rectilinear or straightline propagation

n n n me

Bending of light at an angle from one medium to another refraction

Reflection t refraction Partial refraction

air
I reflected

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