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Undergrad The weirdest and most puzzling problem I've ever encountered

  • ManDay
  • · Replies 34 ·
2
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34

High School Is Light Really Slowing Down or Is It Just More Matter Between Us and the Stars?

  • Geekchick
  • · Replies 1 ·
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1

Graduate How do you tell the moving direction of a wave?

  • KFC
  • · Replies 3 ·
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3

Undergrad Michelson interferometer producing no fringes with weak output

  • Miphisto
  • · Replies 4 ·
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4

Graduate Why does light have that particular speed?

  • Pjpic
  • · Replies 13 ·
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13

Undergrad What limits reflections between parallel mirrors?

  • Loren Booda
  • · Replies 1 ·
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1

High School How do I measure the magnification of a magnifying glass?

  • hellogreen
  • · Replies 1 ·
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1

Graduate Does Light Really Slow Down When Passing Through a Medium?

  • pallidin
  • · Replies 25 ·
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25

High School Burning wood with a magnifying glass

  • einai
  • · Replies 2 ·
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2

Graduate Fourier Analysis's relation to diffraction

  • know
  • · Replies 3 ·
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3

Undergrad How can an intervening lens correct an out-of-focus projected image?

  • Loren Booda
  • · Replies 1 ·
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1

Graduate How do spherical sound waves reflect off curved surfaces?

  • chrom68
  • · Replies 6 ·
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6

Graduate Making negative refraction with positive index material

  • St. Aegis
  • · Replies 16 ·
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16

High School Do color bandwidths in the visible spectrum correlate with their intensity?

  • barooonscape
  • · Replies 18 ·
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18

Undergrad What Governs the Speed of Light Itself?

  • Gaijin
  • · Replies 48 ·
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48

Undergrad Can images be digitally altered to correct for glasses prescription?

  • Eshez
  • · Replies 6 ·
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6

High School How to measure magnification of a magnifying glass

  • hellogreen
  • · Replies 1 ·
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1

Undergrad Can the Doppler Effect Explain Redshift in Light?

  • Combsbt
  • · Replies 9 ·
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9

Undergrad How does the f-number of camera lenses affect image area?

  • Gear300
  • · Replies 1 ·
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1

Undergrad Why do Yellow Tinted Glasses 'Brighten' view?

  • Magical
  • · Replies 4 ·
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4

High School Are black/gray/white considered as colors and their properties

  • hr1100
  • · Replies 4 ·
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4

Graduate How is sigma polarisation defined?

  • edallica
  • · Replies 4 ·
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4

Undergrad Why light fades over distance?

  • smuga
  • · Replies 1 ·
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1

Undergrad Are there particle's or masses that travel faster than light?

  • falloutcast
  • · Replies 34 ·
2
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34

Graduate Why is there no energy transfer along the oscillation direction at Brewster angle?

  • andrewhei
  • · Replies 2 ·
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2

Undergrad Refraction through Muliple media

  • sr_philosophy
  • · Replies 9 ·
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9

Undergrad Fiber optic based beam splitter

  • Karthiksrao
  • · Replies 1 ·
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1

Graduate Method for determining the difference between two similar optical wavelengths

  • lichen
  • · Replies 7 ·
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7

Graduate How does light reflect at an interface with a chemically complex material?

  • vadar
  • · Replies 5 ·
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5

Undergrad Debating Wave-Particle Duality of Light

  • rdunk4
  • · Replies 17 ·
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17

Graduate Simulating a Fabry Perot Interferometer

  • CasualDays
  • · Replies 1 ·
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1

Graduate How Does Electron Behavior Influence Light Reflection in Metals?

  • mviswanathan
  • · Replies 4 ·
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4

Graduate Invisibility Cloak - new advances

  • Chaos' lil bro Order
  • · Replies 2 ·
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2

Undergrad Refraction vs Frequency Question

  • snoobeagle
  • · Replies 2 ·
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2

Undergrad Why does light bend at interfaces between different media?

  • amitjnkp
  • · Replies 11 ·
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11

Graduate Stopping light, playing with it, then releasing it.

  • Topher925
  • · Replies 2 ·
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2

Graduate Why is the rest mass of photons 0?

  • regev
  • · Replies 21 ·
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21

Graduate What focal lengths should I use to reduce laser beam size to 220 micrometers for an AOM?

  • cks
  • · Replies 2 ·
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2

How can I project images onto a mirror for a painting project?

  • danbeard
  • · Replies 6 ·
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6

Undergrad Thin Lenses: Lens Makers' Equation Proved

  • Gear300
  • · Replies 3 ·
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3

Undergrad LED retrofit for car foglights with projector housing

  • ameuba10
  • · Replies 5 ·
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5

Undergrad Bending a laser beam's cross section possible?

  • flying fish
  • · Replies 2 ·
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2

Graduate Why does the Fourier transform of an aperture give Fraunhofer diffraction?

  • TheDestroyer
  • · Replies 2 ·
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2

Undergrad Why does a PWM light dimmer actually work?

  • cepheid
  • · Replies 14 ·
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14

High School Focal length of concave lens experiment

  • ash_nar
  • · Replies 1 ·
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1

Graduate Waveguiding, Modes, Organic LEDs

  • needhelp87
  • · Replies 1 ·
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1

Undergrad Diffusion of laser light for measuring laser power

  • jodyflorian
  • · Replies 3 ·
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3

Graduate How do we know the maximum speed of light?

  • theshadow27@gmail.com
  • · Replies 1 ·
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1

Undergrad Measuring laser output with Lux meter

  • jodyflorian
  • · Replies 2 ·
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2

High School Does ball pen emit laser beam?

  • thinhnghiem
  • · Replies 2 ·
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2

Undergrad Infra Red Light: How Electron Movement Creates NIR

  • Monitor16807
  • · Replies 2 ·
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2

Undergrad Is the magnetic field clockwise or anti-clockwise to the electric field in light?

  • gonegahgah
  • · Replies 6 ·
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6

Undergrad Can Scotch tape produce X-rays?

  • vanesch
  • · Replies 4 ·
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4

Undergrad Directly measure frequency of light source

  • JoMo
  • · Replies 3 ·
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3

High School Which is better for reflecting wavelengths, a prism or a mirror?

  • sjon
  • · Replies 2 ·
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2

High School Why Does an Object Appear Larger Underwater?

  • shirel
  • · Replies 6 ·
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6

Graduate Can a perfect eye distinguish all spectral colors?

  • sonnybilly
  • · Replies 23 ·
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23

High School Does the Prism Effect Influence the Color of Sunsets?

  • Tibriel
  • · Replies 2 ·
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2

High School Why can i see hidden image with a polarized spec?

  • crays
  • · Replies 1 ·
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1

Undergrad Polarized light filtering question.

  • HooDude
  • · Replies 4 ·
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4

High School Solar laser (for the lack of abetter word)

  • techtakular
  • · Replies 3 ·
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3

Graduate Tracking fringe shifts in a Mach-Zehnder and fiber-based phase delay

  • Karthiksrao
  • · Replies 4 ·
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4

Undergrad What Does the 4a Angle Mean in Light Trails?

  • shirel
  • · Replies 9 ·
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9

High School What Damage Can Infrared Rays, Radar Waves, FM Waves, etc. Do To The Body?

  • Cmertin
  • · Replies 1 ·
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1

Graduate Spectral Content of Plane Wave Train

  • TheDestroyer
  • · Replies 2 ·
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2

Graduate How Do Lasers Ensure Photons Travel in the Same Direction?

  • jhirlo
  • · Replies 13 ·
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13

Graduate Huygens principle and single slit diffraction

  • quantumfireball
  • · Replies 1 ·
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1

Undergrad Transverse Wave Polarization States - Ask a Question

  • GAGS
  • · Replies 2 ·
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2

Undergrad Why does laser light reflected from a diffuse surface appear speckled?

  • h0dgey84bc
  • · Replies 2 ·
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2

Graduate Total field, scatt field, incident field

  • fisico30
  • · Replies 1 ·
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1

Graduate Confusion about Homogenous Broadening in Lasers

  • H_man
  • · Replies 2 ·
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2

Undergrad Plane Waves vs. Waves on a String

  • WarPhalange
  • · Replies 5 ·
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5

High School How do light dependent resistors work with photons and electrons?

  • Unredeemed
  • · Replies 2 ·
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2

Graduate Enhancing Light: Application for Energy Conservation?

  • radioHam
  • · Replies 1 ·
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1

High School Speed of light in pure Hydrogen

  • Arnaho
  • · Replies 10 ·
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10

High School Understanding Ray of Light: What is it?

  • sruthisupriya
  • · Replies 14 ·
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14

Graduate Right handed vs Left handed circular polarization

  • h0dgey84bc
  • · Replies 8 ·
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8

Graduate When does a phase change of π occur in EM wave reflection?

  • h0dgey84bc
  • · Replies 1 ·
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1

High School Refraction - what's happening for real

  • Bunnyhop
  • · Replies 6 ·
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6

Graduate Why can't we focus X-rays with lenses?

  • cronxeh
  • · Replies 18 ·
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18

Graduate Uncertainty of the speed of light in vacuum

  • fluidistic
  • · Replies 11 ·
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11

Graduate Are all photons the same or do they have different properties?

  • scienceteacher
  • · Replies 5 ·
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5

Undergrad Comments on Double Slit Experiment for Accurately measuring distances?

  • kevin99
  • · Replies 8 ·
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8

Graduate Expansion of polarized plane waves into spherical harmonics,

  • tecne1982
  • · Replies 12 ·
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12

Mirror Alignment: Keck Telescope Instrument Accuracy

  • wolram
  • · Replies 5 ·
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5

Undergrad Snell's Law Variation: Expressing with Cosines

  • Cider
  • · Replies 2 ·
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2

Graduate Light trapped in a mirrored sphere or between mirrors

  • science_rules
  • · Replies 1 ·
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Undergrad Light intensity and photosynthetic rate

  • Propagandhi
  • · Replies 3 ·
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3

Undergrad Finding refractive index of liquid with no parallax principle

  • MadmanMurray
  • · Replies 1 ·
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1

Graduate What does scattering to infinity mean for wave equation solutions?

  • dcs23
  • · Replies 5 ·
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5

Graduate Why are photons affected by gravity if they have no mass?

  • Commander8bal
  • · Replies 5 ·
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5

Graduate Desructive interference = destroyed energy?

  • icelevistus
  • · Replies 16 ·
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16

Undergrad If matter were to travel the speed of light, would it convert to

  • adamnoellsch
  • · Replies 4 ·
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4

High School Does the orientation of a convex lens matter for imaging?

  • cks
  • · Replies 9 ·
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9

Undergrad Is Purple the Color of Time in Light and Lightning Phenomena?

  • s2ee
  • · Replies 5 ·
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5

High School Why Does Water Make a Perfect Mirror?

  • sollinton
  • · Replies 7 ·
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7

Undergrad Polarization Direction of Linearly Polarized Plane Waves

  • felicity87
  • · Replies 2 ·
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2

Graduate UV wavelength for germicidal effects in water with refraction correction

  • sbarton
  • · Replies 4 ·
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4

Graduate Why Fraunhofer diffraction uses destructive interference for minima

  • GPhab
  • · Replies 8 ·
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8

Graduate Can sound use light as a medium to pass through?

  • winchy
  • · Replies 15 ·
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15