Geometrical Optics:
Geometrical Optics & Physics Optics.
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Huygens Principle:

Wavefronts.
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Reflection:

The first law of Geometrical Optics.
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Refraction:

The second law of Geometrical Optics: Snell's law.
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Critical angle:

Internal total reflection.
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images formed by reflection

Spherical concave mirrors. Mirror equation.
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images formed by refraction

Spherical convex mirrors ..
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Fermat's principle:

Fermat's principle for reflection and refraction..
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lenses:

Thin lenses and Lens-makers' equation ..
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prism:

Prism, colors minimum deviation ..
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Human eye:

near point, far point, nearsightedness, farsightedness..
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Microscope:

Microscope: simple, compound, and magnification..
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Telescope:

Telescope: magnification..
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Resolution:

optical microscope, electron microscope ..
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dispersion:

dispersion, more about the refractive index, and colors of a prism ..
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parallel sheet:

deviation by a parallel sheet ..
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thin films :

thin films and Newton's rings..
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Newton's rings:

thin films and Newton's rings..
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Descartes rainbow:

Primary and secondary rainbows ..
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Some applications

More fun with Optics ..
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Optics calculator:

Optics calculator: all the related calculations ..
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home

The fundamental, and just this ..
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scientificSentence

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__________________

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Calculator

Optics Calculator

v1  
v2   
v3   
v4   
 

Result:


User guide:

add: v1 to v2
subtract: v2 from v1
multiply: v1 by v2
divide: v1 by v2
square: v1
cube: v1
factorial of v1
sqrt: of v1

snell_i: i = arcsin[(n2/n1) sin r]
v1 = n1, v2 = n2, v3 = r

snell_r: r = arcsin[(n1/n2) sin i]
v1 = n1, v2 = n2, v3 = i

deviation: prism
δ = θ - A + arcsin[n sin (A - arcsin (sin θ)/n)]
v1 = θ , v2 = A, v3 = n (that is: n2/n1)

min-dev: prism
δm = 2 θ - A
v1 = θ, v2 = A

index: prism
sin[(δm + A)/2] = n sin (A/2)
v1 = θ , v2 = A

critical:
ic = arcsin(n1/n2)
v1 = n1 , v2 = n2

f-lensmaker:
(n2 - n1)(1/R1 - 1/R2) = n1/ƒ
v1 = n1 , v2 = n2 , v3 = R1, v4 = R2


slab-dev:
δ = h sin θ [1 - (n1/n2) cos θ/ (1 - [(n1/n2)2 sin2 θ])1/2]
v1 = h , v2 = θ , v3 = n1, v4 = n2

rainbow-dev:
i = arcsin [([4 - (n2/n1)2]/3)1/2]

r = arcsin[(n1/n2) sin i]
Δ = 4r - 2i

v1 = n1 , v2 = n2

magnification:
mt = - (L/f0)(250 mm/fe)
v1 = L (often 160 mm), v2 = f0, v3 = fe in mm

optical resolution:
ΔθR = 1.22 λ/ d
v1 = λ (nm), v2 = d (cm) --

electronic resolution:
ΔθR = 0.15/d E1/2 in nm
v1 = d (cm), v2 = E (eV)



 

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