Optics Forum

Threads

High School If light cannot bend, then how magnify glass works?

  • Ganesh Ujwal
  • · Replies 25 ·
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25

Graduate Radio wave propagation in water

  • sirch
  • · Replies 3 ·
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3

Graduate Double slit - why vertical strips?

  • Nick.
  • · Replies 7 ·
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7

Graduate Two foci on rectilinear congruence of light rays

  • center o bass
  • · Replies 1 ·
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1

High School Constructing a Hollow Glass Prism for Science Experiment

  • croslali arno
  • · Replies 10 ·
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10

Undergrad Light year long stick question

  • iDimension
  • · Replies 16 ·
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16

High School Wireless power and lighting ball

  • Ajbot
  • · Replies 1 ·
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1

High School What is the reflection angle of a golf ball after being struck by a putter?

  • lovethepirk
  • · Replies 22 ·
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22

High School Compound Microscope, Ray Diagram Mistakes.

  • Meet Vora
  • · Replies 6 ·
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6

High School Calculating Camera Lens Diameter with a Ruler

  • walter1998
  • · Replies 4 ·
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4

High School How do standing waves form if original and reflected waves don't overlap?

  • gracy
  • · Replies 28 ·
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28

Undergrad Why can't X-Rays travel through water?

  • nst.john
  • · Replies 8 ·
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8

High School Why is the color white not a mirror?

  • Loanzac
  • · Replies 19 ·
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19

High School Do stars emit the same electromagnetic spectrum?

  • Vphysics2013
  • · Replies 3 ·
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3

Graduate Photon detector count rate from sunlight in green spectrum

  • Xyius
  • · Replies 12 ·
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12

Graduate Natural Light and Linear Polarizer

  • Frank Einstein
  • · Replies 5 ·
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5

Undergrad Do multiple lens cameras refract light differently to a single lens ones?

  • ak33m98
  • · Replies 7 ·
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7

Graduate 4 slit interference, unequal separation

  • Monarch
  • · Replies 11 ·
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11

Graduate Estimating irradiance on a square planar surface

  • vst98
  • · Replies 1 ·
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1

Graduate Understanding Stability Conditions for Unsymmetric Optical Resonators

  • hideelo
  • · Replies 2 ·
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2

High School Why Do Lights Appear to Shine?

  • VoidChimera
  • · Replies 9 ·
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9

Undergrad Diffraction gratings and angular separation

  • Grubstank
  • · Replies 1 ·
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1

Undergrad Light Intensity Model: Showing Minimal Difference at Off Point

  • S.1.B
  • · Replies 5 ·
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5

Graduate Why does recombination in PN junctions release photons?

  • V0ODO0CH1LD
  • · Replies 2 ·
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2

Graduate Classical index of refraction theory

  • center o bass
  • · Replies 3 ·
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3

Graduate Interference of Light - Variations in Intensity

  • mattmt
  • · Replies 5 ·
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5

Undergrad What does it mean to change the polarization of a laser beam

  • mrspock
  • · Replies 3 ·
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3

Graduate Photometric and Radiometric measurement concepts

  • Aditya Mittal
  • · Replies 8 ·
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8

Graduate Why does my reflection formula give [0,0,1] instead of [0,0,-1]?

  • Xyius
  • · Replies 5 ·
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5

Undergrad Can UV LEDs excite phosphor coatings for full-spectrum plant growth lighting?

  • Brainiac
  • · Replies 12 ·
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12

High School Can dispersion of light take place through lens?

  • aditya ver.2.0
  • · Replies 2 ·
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2

Undergrad Why do LEDs continue to emit light?

  • jaydnul
  • · Replies 2 ·
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2

Graduate Why is radiance defined per projected area normal to the beam direction?

  • brightlint
  • · Replies 4 ·
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4

Undergrad How does the power of a lens affect its ability to focus light?

  • Meron35
  • · Replies 32 ·
2
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32

Graduate Lightweight Tubular Frame: Can it Float?

  • Rooler
  • · Replies 4 ·
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4

Graduate Movement and Properties of Light

  • member 529879
  • · Replies 7 ·
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7

Graduate Fourier Optics: Why Does a Lens Perform a Fourier Transform?

  • X-Kirk
  • · Replies 1 ·
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1

High School Snell's Law: From n sin theta to n1sintheta1 = n2sintheta2

  • mauifq
  • · Replies 1 ·
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1

Graduate Optics: Design of Beamsplitter Ge on KBr substrate

  • SupaVillain
  • · Replies 1 ·
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1

Graduate Behaviour of light thru a glass rod 'end to end'

  • marcophys
  • · Replies 15 ·
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15

Undergrad Why does light reflect off glass cracks if refractive indices are equal?

  • Hypatio
  • · Replies 2 ·
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2

Best laser pointer for optics lab?

  • Dorea
  • · Replies 3 ·
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3

Undergrad Why do Fresnel rings appear in laser beam experiments?

  • ppoonamk
  • · Replies 7 ·
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7

Graduate Reconstructing an image out of a white surface light information.

  • Ovden151
  • · Replies 6 ·
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6

Graduate Quantum mechanism of light reflection and color

  • rwooduk
  • · Replies 2 ·
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2

Graduate X-ray to Microwave fluorescence

  • TESL@
  • · Replies 2 ·
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2

High School Can Our Eyes See Objects in the Nanoscale?

  • kyphysics
  • · Replies 7 ·
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7

Graduate Optics - Obtaining structure of an object using a laser

  • The_Foetus
  • · Replies 5 ·
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5

Undergrad Double Slit Diffraction Problem

  • spitonem
  • · Replies 5 ·
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5

Graduate Deriving AC - A'C = 2(a-y)cos(θm) for waveguide rays

  • loginorsinup
  • · Replies 3 ·
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3

Any good softwares for drawing optical schematics?

  • ppoonamk
  • · Replies 2 ·
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2

High School Using solar cell as a power laser meter

  • DDnoob
  • · Replies 1 ·
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1

Graduate Difference between spin and helicity for a photon

  • nomadreid
  • · Replies 2 ·
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2

Graduate Refraction-Speed difference at different wavelengths

  • u0362565
  • · Replies 10 ·
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10

Undergrad Is refractive index on each side of the parallelepiped the same?

  • Dorea
  • · Replies 3 ·
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3

Undergrad How does light heat air if light is a wave?

  • Tom1996
  • · Replies 3 ·
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3

Undergrad Why is light attenuation not linear?

  • DocMorris
  • · Replies 1 ·
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1

Graduate Laser focal point manipulation

  • Stanley514
  • · Replies 46 ·
2
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46

Undergrad Can microwaves be partially reflected like light is?

  • Xtensity
  • · Replies 9 ·
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9

Undergrad How is the focal length of an objective calculated?

  • ppoonamk
  • · Replies 4 ·
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4

Graduate Do photons pass through each other?

  • Godparicle
  • · Replies 2 ·
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2

Undergrad Can light travel as a longitudinal wave?

  • k9b4
  • · Replies 2 ·
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2

Graduate What does negative contrast look like?

  • DemoniWaari
  • · Replies 2 ·
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2

Graduate Calculating the Frequency of White Light

  • nst.john
  • · Replies 4 ·
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4

Graduate Why do we aim for Single Mode waveguides?

  • Fixar Frazze
  • · Replies 2 ·
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2

High School Measuring the Wavelength of Light

  • dr naz chuhan
  • · Replies 3 ·
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3

High School Four-Level Laser System: Why Less Energy?

  • ScienceKitten
  • · Replies 1 ·
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1

Undergrad Can't find any micrograph for glass

  • JezMoulton
  • · Replies 7 ·
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7

Graduate Polarization state conventions

  • leroyjenkens
  • · Replies 3 ·
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3

Undergrad Light ray simulator? Snell's law/refraction

  • Tom Holly
  • · Replies 2 ·
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2

High School Prism Experiment: Seeing a Wide Spectrum of Light?

  • Prashasti
  • · Replies 1 ·
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1

Undergrad Fresnel Equations and Snells Law

  • girlinphysics
  • · Replies 1 ·
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1

Graduate Jones Vector of Linear Polarization

  • iScience
  • · Replies 2 ·
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2

Graduate How do charges in a wall cancel out incoming electromagnetic waves?

  • k9b4
  • · Replies 4 ·
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4

Undergrad Asking for guidance on the physics of light spectrum

  • Maher Fareed
  • · Replies 2 ·
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2

High School Does light continue to travel through space after its source is removed?

  • k9b4
  • · Replies 12 ·
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12

Graduate Confusion regarding Standing Waves and Reflection resulting in Phase Change

  • Hereformore
  • · Replies 2 ·
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2

Graduate Assigning a Size to Particles and Strings: From Planck Scale to the Universe

  • nomadreid
  • · Replies 5 ·
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5

Undergrad How can we make invisible lights visible?

  • Catch22meifucan
  • · Replies 3 ·
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3

Undergrad Can you measure gas temperature with an infrared laser?

  • lonewolf219
  • · Replies 5 ·
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5

Graduate Relationship between elements and speed of light

  • Roodles01
  • · Replies 1 ·
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1

High School How do lightning conductors prevent lightning strikes?

  • Barclay
  • · Replies 6 ·
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6

Graduate How does light interference occur when EM radiation interacts with itself?

  • k9b4
  • · Replies 2 ·
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2

High School Why does a laser pointer spot have a shimmering grainy appearance?

  • thetexan
  • · Replies 2 ·
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2

High School Why can light go through some matter but not other matter?

  • k9b4
  • · Replies 7 ·
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7

High School Is there any difference between light from positive and negative charges?

  • k9b4
  • · Replies 17 ·
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17

Undergrad Is the Momentum of EM Radiation Influencing Electron Behavior?

  • k9b4
  • · Replies 8 ·
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8

High School Evaporation of water from non polar surfaces

  • William Jackson
  • · Replies 4 ·
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4

High School How does a plane mirror form an image of an object?

  • harivarshan
  • · Replies 4 ·
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4

Graduate Clarifying Coherent and Incoherent Sum of Plane Waves

  • ppoonamk
  • · Replies 3 ·
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3

Graduate Microscopy: Deconvolve the PSF and enhance resolution

  • eoghan
  • · Replies 4 ·
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4

High School Why does sunlight create better color effects than a flashlight?

  • Catch22meifucan
  • · Replies 8 ·
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8

Graduate Asymmetric transmission of Infrared

  • trendal
  • · Replies 11 ·
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11

Graduate Does the photon have an antiparticle?

  • aditya ver.2.0
  • · Replies 23 ·
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23

Undergrad Microscope magnification with camera

  • Choisai
  • · Replies 10 ·
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10

Graduate Why do more slits increase peak intensity in diffraction?

  • Hereformore
  • · Replies 5 ·
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5

Undergrad Light coming straight from an object not affected by Polarizer?

  • Hereformore
  • · Replies 1 ·
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1

Graduate What is an optical force in waveguide resonators?

  • gonegahgah
  • · Replies 8 ·
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8

Undergrad Dispersion of light through a prism and block, changing the incident angle

  • mayer
  • · Replies 1 ·
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1

Undergrad Why does a reflected wave reach 2A amplitude at a free end?

  • Rishavutkarsh
  • · Replies 6 ·
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6