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Graduate Does reflection support the particle theory of light?

  • yaowang101
  • · Replies 9 ·
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9

Undergrad Sunlight Intensity: Measuring for Window Facing South

  • TSN79
  • · Replies 1 ·
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1

Graduate Energy conservation in interference phenomenon

  • anjor
  • · Replies 5 ·
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5

Undergrad Why don't fully reflective mirrors create infinite photons in a laser?

  • caif84
  • · Replies 3 ·
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3

Graduate How can photons exert force without having mass?

  • Bart001
  • · Replies 7 ·
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7

Undergrad A pyranometer, a device that measures sunlight intensity

  • TSN79
  • · Replies 5 ·
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5

Undergrad Photons have energy but zero mass?

  • fatoomch
  • · Replies 12 ·
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12

Graduate Laser Illuminocity changes with cavity length

  • fargoth
  • · Replies 1 ·
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1

Undergrad Why does light pass through two perpendicular polarizers with a 45° filter between them?

  • CeeAnn
  • · Replies 1 ·
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1

Undergrad Why doesn't the refractive index formula work for water?

  • RichRobX
  • · Replies 9 ·
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9

Undergrad Light always travels the fastest path right?

  • skywolf
  • · Replies 1 ·
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1

Undergrad Does perpendicular incident light slow down through glass?

  • MindReality
  • · Replies 17 ·
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17

Graduate From FAQ: IS LIGHT A WAVE OR A PARTICLE?

  • erickalle
  • · Replies 1 ·
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1

Graduate Relation between diffraction and wavelength

  • eep
  • · Replies 12 ·
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12

Graduate Can square waveforms improve resolution in penny shadow imaging?

  • Chaos' lil bro Order
  • · Replies 11 ·
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11

Graduate Does Radio Wave Efficiency Improve During Nighttime Tropospheric Enhancement?

  • xhm100
  • · Replies 3 ·
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3

Undergrad How small do recursive mirror reflections get when zoomed in infinitely?

  • -Job-
  • · Replies 5 ·
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5

High School Making hologram without optical table ?

  • ngkamsengpeter
  • · Replies 2 ·
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2

Graduate Max Magnification of a Object: Does Size Matter?

  • -Job-
  • · Replies 1 ·
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1

Undergrad What causes the streamers of light when squinting at a light source?

  • Nacho
  • · Replies 4 ·
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4

Graduate Why is Direct Detection of Doppler Frequency Shift Impractical in Laser Doppler Anemometry?

  • leila
  • · Replies 1 ·
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1

High School Speed for lightning and thunder

  • emma123
  • · Replies 9 ·
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9

High School What is the object distance for a concave mirror?

  • ccflyer
  • · Replies 1 ·
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1

Undergrad Why does wavelength change when the source moves but not the listener?

  • chound
  • · Replies 2 ·
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2

Undergrad Particles smaller than the wavelength of light

  • Repetit
  • · Replies 7 ·
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7

Undergrad Wave Frequency Change: Why Does Velocity Not Increase?

  • Ed Quanta
  • · Replies 5 ·
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5

Can I do this in my microwave?

  • Mk
  • · Replies 15 ·
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15

Undergrad Scatter vs Diffusion: What’s the Difference?

  • dervast
  • · Replies 3 ·
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3

High School Why do my eyelashes look enormous

  • Mr.V.
  • · Replies 3 ·
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3

High School I need a very unusual UV filter (no, not what you're thinking)

  • Arkasha
  • · Replies 3 ·
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3

High School Shake Up Flashlights - Impressive Induced Current from Motion

  • SockCymbal
  • · Replies 20 ·
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20

High School What Causes the Illusion of Wheels Spinning Backwards?

  • Emanresu
  • · Replies 3 ·
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3

High School Why does my laser pointer create a weird effect when shined at a ceiling fan?

  • jhe1984
  • · Replies 6 ·
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6

Graduate Why does light reflect and refract at interfaces between materials?

  • rahl___
  • · Replies 2 ·
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2

High School You have a light bulb in the middle of a room and .

  • cluelesskiddy
  • · Replies 24 ·
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24

Graduate Does radio wave absorption in plasma depend on pressure and temperature?

  • sid_galt
  • · Replies 1 ·
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1

Undergrad Ball lightning produced in lab?

  • Ivan Seeking
  • · Replies 2 ·
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2

Graduate Make photons into some material?

  • wolram
  • · Replies 7 ·
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7

Graduate The early perception of light ?

  • chewan
  • · Replies 8 ·
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8

Undergrad Increase N in Optical Fiber: Effects on Speed of Light

  • dervast
  • · Replies 3 ·
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3

Graduate What's the Difference Between Light and Magnetic Fields?

  • beta3
  • · Replies 5 ·
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5

High School Why does heated iron glow red and emit light?

  • Tachyon son
  • · Replies 5 ·
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5

Graduate What is light made of and why does it travel at its speed?

  • Agent C.I
  • · Replies 4 ·
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4

Where Can I Find Information About Lasers?

  • dilan
  • · Replies 6 ·
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6

High School Why do Military Installations Use Red Lighting?

  • sridharo
  • · Replies 9 ·
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9

High School Why is View Through Glass Window Not Dimmed?

  • physicsss
  • · Replies 10 ·
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10

Undergrad Sound pressure level magnitude question.

  • soundguy
  • · Replies 4 ·
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4

High School Why is UV light blurry at the edges when trying to focus it?

  • QueenFisher
  • · Replies 4 ·
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4

Graduate Light bending around neutron and bound photon

  • raj_vad
  • · Replies 4 ·
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4

High School Does light have weight and mass?

  • time traveller d
  • · Replies 28 ·
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28

Graduate Crash course materials for ultrafast laser spectroscopy

  • ironcross77
  • · Replies 1 ·
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1

Graduate Optics: building a camera with quasi-hemispherical recording surface, what lens?

  • jdanforth
  • · Replies 1 ·
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1

Graduate Is a Radio Laser Possible Through Non-Linear Frequency Mixing?

  • mee
  • · Replies 11 ·
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11

Richard Feynman Lectures on Light

  • matrixx333
  • · Replies 5 ·
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5

Undergrad Problem related to engery of light

  • uam
  • · Replies 3 ·
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3

Graduate Irrelevant to ask if speed of light changes?

  • Anders Lundberg
  • · Replies 4 ·
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4

Undergrad Understand what is polarization and why do we need it?

  • dervast
  • · Replies 9 ·
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9

Graduate How to calculate achievable flashlight beam divergence

  • joema
  • · Replies 10 ·
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10

Undergrad Speed of Light: Does It Change in Different Materials?

  • Just some guy
  • · Replies 3 ·
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3

Undergrad Difference between two polarization directions

  • Kruger
  • · Replies 9 ·
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9

Graduate What happens if you travel faster than the speed of light?

  • scott1
  • · Replies 6 ·
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6

High School Where Does Light Go When We Turn Off the Switch?

  • Mozart
  • · Replies 17 ·
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17

Graduate Do Photons Have Mass When Moving Close to the Speed of Light?

  • Mr.Socrates
  • · Replies 7 ·
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7

Undergrad What are the properties and behavior of photons?

  • debeng
  • · Replies 27 ·
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27

Graduate Long Wave Photons: Evidence for Low Energy Light Waves?

  • silverdiesel
  • · Replies 3 ·
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3

High School Sunrise and Sunset - Is there a difference?

  • dicerandom
  • · Replies 3 ·
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3

Graduate Interactions of Photons with Matter

  • quantumdude
  • · Replies 1 ·
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1

Graduate Doppler Effect in Accelerating Frames vs Normal Doppler Effect

  • Hydr0matic
  • · Replies 4 ·
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4

Undergrad Would Homopolar Generators Work with Magnet as Disc?

  • eeka chu
  • · Replies 9 ·
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9

Graduate If speed of light is constant, how does prismatic color shift occur?

  • AJHank
  • · Replies 7 ·
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7

High School How to make a hologram by myself ?

  • ngkamsengpeter
  • · Replies 11 ·
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11

Graduate Is the Diffraction Pattern from Slits Influenced by Topmost Atomic Layers?

  • Buckeye
  • · Replies 4 ·
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4

Graduate Emission or Absorption of a Photon - Dipole Needed?

  • Buckeye
  • · Replies 2 ·
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2

High School Is Light a Particle or a Wave?

  • Johnson
  • · Replies 29 ·
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29

Do you own a laser?

  • dimensionless
  • · Replies 16 ·
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16

High School Will My Hologram Be Fully 3-Dimensional?

  • z-component
  • · Replies 2 ·
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2

Graduate X-ray fluorescent screens and film contrast

  • ChumpusRex
  • · Replies 3 ·
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3

Undergrad Fermat's principle light and time

  • pi-r8
  • · Replies 8 ·
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8

Graduate X-Ray lines from inner shell ionisation

  • ZeroGravity
  • · Replies 3 ·
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3

High School Why do different EM waves have different energy if they travel at the same speed?

  • benzun_1999
  • · Replies 5 ·
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5

High School How light produce? and why we can see it?

  • limce87
  • · Replies 10 ·
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10

Graduate Why do vertical maxima in Fourier plane yield horizontal lines in optical filtering?

  • JamesJames
  • · Replies 1 ·
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1

Undergrad Hyperbolic Lenses: Abberation-Free?

  • bomba923
  • · Replies 3 ·
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3

Graduate Optical Lens Selection for 612nm Laser Source

  • csocean
  • · Replies 1 ·
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1

Overcoming Lightning: Price Issue or Something Else?

  • Alpha2005
  • · Replies 5 ·
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5

Undergrad Changing the direction of light

  • adn
  • · Replies 3 ·
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3

High School Diffraction diffusion effusion differences

  • kleinwolf
  • · Replies 7 ·
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7

Undergrad Why does Fresnel diffraction from a single slit have zero intensity at the center?

  • bartieshaw
  • · Replies 1 ·
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1

Undergrad When does the single slit diffraction formula apply?

  • PhiJ
  • · Replies 13 ·
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13

Undergrad Physical parameters define colors like the pigment primaries

  • Loren Booda
  • · Replies 12 ·
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12

High School Why are rainbows usually semicircles instead of complete circles?

  • damitr
  • · Replies 9 ·
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9

Undergrad Spherical glass object with index of refraction N

  • leon1127
  • · Replies 2 ·
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2

High School What Are Normal and Anomalous Dispersion?

  • sad life
  • · Replies 2 ·
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2

High School Why do real objects and TV screens show different colors?

  • Lakshminarayanan.V
  • · Replies 9 ·
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9

High School Focusing Monochromatic Light: Why Do We Need a Distant Object?

  • EIRE2003
  • · Replies 2 ·
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2

Undergrad Exsistance before the speed of light hits- question for you.

  • Arecibo
  • · Replies 7 ·
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7

Undergrad Can Sound Actually be Faster Than Light?

  • archen
  • · Replies 16 ·
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16

High School When bulb light passes through a prism

  • Physicist
  • · Replies 4 ·
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4

Undergrad How much light is lost per reflection in standard glass mirrors?

  • pallidin
  • · Replies 12 ·
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12

High School Why does the wall between the rooms look red in red light and white in white light?

  • nzahra_ghasemi
  • · Replies 8 ·
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8