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High School Why do I see an inverted virtual image in a concave mirror behind the focus?

  • djnnt
  • · Replies 28 ·
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28

Undergrad Speed of light through a prism

  • Buckleymanor
  • · Replies 19 ·
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19

High School Does the frequency of light changes when it go through a prism

  • Rico L
  • · Replies 8 ·
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8

Graduate Does Compton Scattering Have No Effect on Electron Energy and Velocity?

  • leonidas24
  • · Replies 10 ·
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10

Undergrad Why is it that diffraction is greatest when slit is close to size of wavelength?

  • gladius999
  • · Replies 16 ·
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16

Undergrad Mirrors, Atoms and Light Question

  • cl-ml
  • · Replies 8 ·
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8

Undergrad Red vs. Microwave/Green Light: Diffraction Patterns

  • cragar
  • · Replies 1 ·
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1

Undergrad Does Polarization Cause Discontinuous EM Waves?

  • fluidistic
  • · Replies 3 ·
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3

Graduate Real component of the wavelength of microwaves in copper

  • buttons123
  • · Replies 1 ·
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1

High School Wave freq vs freq of its oscillating source

  • itsthemac
  • · Replies 2 ·
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2

Graduate Diffraction and Huygens sources

  • gladius999
  • · Replies 1 ·
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1

Undergrad Calculating EFL of a Three Lens System

  • nek26
  • · Replies 1 ·
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1

High School Why does a red wall reflect white at high light intensity?

  • jocose
  • · Replies 15 ·
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15

Graduate Mie theory azimuthal ange independance

  • dustydude
  • · Replies 2 ·
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2

Undergrad Combination/Convergence of Laser Beams On A Singular Focal Point

  • MathsDude69
  • · Replies 1 ·
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1

Undergrad Laser beam internal reflections in a refractive slab

  • j3wfrobklyn
  • · Replies 3 ·
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3

High School Ray tracing rules for concave and convex lenses and mirrors

  • kusiobache
  • · Replies 1 ·
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1

High School How does polarization create 3D films?

  • pixel01
  • · Replies 32 ·
2
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32

Undergrad Why stars blink and planets don't

  • likephysics
  • · Replies 3 ·
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3

Undergrad How Does Malus's Law Apply to Light Intensity with Three Polarizers?

  • ronaldoshaky
  • · Replies 2 ·
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2

Undergrad Why do we divide the slit into halves in single-slit diffraction?

  • Lil_Aziz1
  • · Replies 10 ·
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10

Graduate Difference between material dispersion and waveguide dispersion

  • Cerkit
  • · Replies 1 ·
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1

Graduate Can a rotating rod's tip move faster than light?

  • Spoink
  • · Replies 5 ·
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5

Graduate Why does P-polarized light have an Ex component?

  • geo_alchemist
  • · Replies 4 ·
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4

Undergrad Atomically flat vs Optically flat

  • onqun
  • · Replies 3 ·
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3

Undergrad Two Parallel Beams of Light Pass Each Other At What Speed?

  • Triyence
  • · Replies 7 ·
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7

High School Does light slow down when traveling through radiation or magnetic fields?

  • qwerty1
  • · Replies 5 ·
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5

Undergrad What exactly is light: is it pure energy?

  • cj2222
  • · Replies 6 ·
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6

Graduate Modeling femtosecond laser beam profile in transparent material

  • Jim Tan
  • · Replies 3 ·
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3

High School Why did one plastic container melt in the microwave but not the other?

  • Xyius
  • · Replies 3 ·
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3

High School Why does looking at things from a small hole make it more clear?

  • sameeralord
  • · Replies 10 ·
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10

Graduate Why do birefringent crystals show colored interference patterns?

  • Particle-Wave
  • · Replies 3 ·
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3

Undergrad How do polarizing filters work

  • HorseBox
  • · Replies 1 ·
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1

Undergrad Light Polarization: Does Scattering Split Light?

  • HorseBox
  • · Replies 1 ·
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1

Undergrad Double slit diffraction maxima

  • HorseBox
  • · Replies 2 ·
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2

High School How Does Burning Fuel Produce Light?

  • pankaj66866
  • · Replies 4 ·
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4

High School What is an electromagnetic wave and why does light have electric and magnetic fields?

  • sameeralord
  • · Replies 14 ·
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14

Undergrad Can our eyesight framerate capability be improved through reverse magnification?

  • ralph17
  • · Replies 6 ·
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6

Undergrad Why Do Diverging Lenses Always Produce Shrunken Images?

  • BogMonkey
  • · Replies 1 ·
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1

Undergrad How does burning fuel produce light?

  • pankaj66866
  • · Replies 1 ·
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1

Graduate Fresnel equations and energy ratios

  • becko
  • · Replies 5 ·
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5

Undergrad What happens to a photon after exciting an electron?

  • sameeralord
  • · Replies 3 ·
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3

High School What is the microwave auditory effect and how is it possible?

  • seldon.paul
  • · Replies 1 ·
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1

Graduate FRAP experiment: bleach spot invisible in thick specimens due to out-of-focus fluorescence

  • ponjavic
  • · Replies 2 ·
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2

Graduate Light as a wave, frequency question

  • fluidistic
  • · Replies 6 ·
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6

Graduate HOW do radio waves form at the subatomic level?

  • taylaron
  • · Replies 40 ·
2
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40

Undergrad Why is a rough surface a good absorber and radiator of infrared?

  • quantum123
  • · Replies 2 ·
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2

High School Why Does Light Reflect Off a Mirror at the Same Angle It Hits?

  • cragar
  • · Replies 14 ·
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14

Rediculous questions on light speed

  • Blakesterc8
  • · Replies 19 ·
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19

Undergrad Inductive interference from two EM coils (aka a transformer)

  • borderLine
  • · Replies 1 ·
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1

Undergrad Using the formula 1/f = 1/object distance + 1/image distance, in the

  • avocadogirl
  • · Replies 1 ·
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1

Undergrad Does typical Sun Light usually contain all EM spectrum?

  • Moviemann345
  • · Replies 2 ·
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2

Undergrad Circuit questions (polarity and LEDs)

  • sltungle
  • · Replies 15 ·
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15

High School =Which Color is Brightest: Red, Green, or Blue Light?

  • rycw
  • · Replies 3 ·
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3

Graduate Depth of Field needed for Fraunhofer Pattern

  • rem2722
  • · Replies 1 ·
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1

Graduate Fabry Perot Cavity - phase difference?

  • trelek2
  • · Replies 1 ·
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1

Graduate Using young's double slit experiment

  • hell_demon
  • · Replies 6 ·
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6

Undergrad How do anti-reflective coatings use interference to reduce reflection?

  • OPTIDONN
  • · Replies 17 ·
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17

Undergrad Does light travel delay make mirror reflections slower than our movements?

  • wilha
  • · Replies 17 ·
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17

High School How many times does light bounce between two mirrors 10 feet apart per second?

  • crashoran
  • · Replies 2 ·
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2

Undergrad Wave Nature of Light of Minerals

  • wiccabean21
  • · Replies 2 ·
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2

Graduate Gravity Goes Faster Than Light?

  • Mazerakham
  • · Replies 3 ·
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3

High School Difference between the spectra obtained through prism and grating?

  • kmp
  • · Replies 3 ·
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3

Graduate Do photons cause diamonds to lose mass when absorbed and re-emitted?

  • Theheretic
  • · Replies 1 ·
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1

Undergrad Visible Light: Beyond 400-800nm?

  • Petar Mali
  • · Replies 2 ·
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2

Graduate Theoretical problems with relativistic space flight

  • Nabeshin
  • · Replies 14 ·
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14

Graduate Double-slit diffraction with UNEQUAL source amplitude

  • hbal9604@usyd
  • · Replies 3 ·
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3

Graduate Speed of light in and out of vacuum

  • Jobrag
  • · Replies 2 ·
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2

Graduate What Are the Spectral Lines of Glass and How Do They Affect Light Transmission?

  • cragar
  • · Replies 2 ·
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2

Graduate Constancy of light? Why the fuss?

  • dirtyd33
  • · Replies 1 ·
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1

Graduate What Causes Violation of Snell's Law in Linear Birefringent Crystals?

  • enotstrebor
  • · Replies 5 ·
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5

Undergrad Accelerating to the Speed of Light

  • ruko
  • · Replies 14 ·
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14

High School Photon refers to radio waves or not?

  • poopoo
  • · Replies 5 ·
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5

Undergrad How come a light bulb does not explode?

  • yasar1967
  • · Replies 6 ·
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6

Undergrad Why doesn't centripetal force change the magnitude of speed

  • sameeralord
  • · Replies 15 ·
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15

Undergrad Why is the wave vector direction the direction of propagation?

  • stevvvvv
  • · Replies 5 ·
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5

Graduate Single Slit (Fraunhoffer) Diffraction Question

  • hbal9604@usyd
  • · Replies 1 ·
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1

High School To the nearest order of magnitude.

  • Beer w/Straw
  • · Replies 6 ·
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6

Undergrad Why does laser diffraction spread faster after passing through an aperture?

  • DarthMarth
  • · Replies 3 ·
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3

Undergrad Doppler effect to distance without using time-of-flight; can this be done?

  • Ray_Xu
  • · Replies 8 ·
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8

Undergrad Relationship between sphere radius and ellipse axes in cone of light

  • Chandi
  • · Replies 1 ·
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1

Graduate Can Matter Become More Charged as Bosons?

  • Chelle12
  • · Replies 9 ·
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9

Graduate Light traveling at light speed

  • Gear300
  • · Replies 2 ·
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2

Undergrad Coherency between two waves is that their mutual phase difference

  • Niles
  • · Replies 6 ·
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6

Graduate Microscopic reason why refractive index typically increases with frequency?

  • 2Tesla
  • · Replies 4 ·
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4

Undergrad Converging Lenses and Magnification

  • mikezhou
  • · Replies 1 ·
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1

Undergrad What is the nature of refraction ?

  • blenx
  • · Replies 5 ·
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5

Graduate How does top-spin effect a tennis ball's flight?

  • Invokion
  • · Replies 7 ·
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7

Graduate Cosmological redshift and photon energy loss in SR

  • vsemenov
  • · Replies 2 ·
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2

Graduate Why does anomalous dispersion occur with strong absorption?

  • Niles
  • · Replies 3 ·
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3

Graduate Understanding Phase Difference in Birefringent Materials

  • Niles
  • · Replies 6 ·
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6

Undergrad Physics of Pointed vs. Rounded Lightning Rods

  • brewcrew975
  • · Replies 5 ·
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5

Graduate Work required to move photons?

  • uby
  • · Replies 2 ·
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2

High School Why Can't You See Light Between the Earth and the Sun from the Moon?

  • binbots
  • · Replies 7 ·
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7

Graduate Can Light Ever Travel Faster Than the Speed of C?

  • idiosyncratic
  • · Replies 17 ·
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17

Graduate Converting 60 kg to light energy using E=mc²

  • cubud
  • · Replies 15 ·
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15

High School Shifting light to infrared and how lasers work

  • PeteGerasia
  • · Replies 2 ·
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2

Undergrad Can Orange Light Bulbs Effectively Filter Out 99% of Blue Light?

  • aegimius
  • · Replies 3 ·
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3

Undergrad Optics-maximum lens resolution and difraction limit

  • AlexB2010
  • · Replies 19 ·
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19

High School Why is the light from the sun called white light?

  • FizixFreak
  • · Replies 15 ·
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15