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High School How Does Laser Interaction Impact Air?

  • linda123
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3

High School Can sound waves be used for precise demolition without dispersing?

  • astro_kat
  • · Replies 5 ·
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5

High School I was changing a light pendant today

  • Emanresu
  • · Replies 4 ·
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4

Graduate If we see wavelengths from 0.4 mm (blue) (not 400nm) and 0.7 mm(red) (not 700nm)

  • physics2460
  • · Replies 20 ·
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20

Undergrad Deriving the intensity equation for double-slit interference

  • fresh
  • · Replies 42 ·
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42

High School Is blue light scattered less than other wavelengths in the sky?

  • Holocene
  • · Replies 10 ·
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10

Undergrad Wavelength and Image Resolution

  • chingkui
  • · Replies 1 ·
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1

Undergrad Why aren't all insulators transparent?

  • yert
  • · Replies 8 ·
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8

Undergrad Microwave ovens vs. cordless phones

  • overlook1977
  • · Replies 5 ·
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5

Graduate Where does the energy go in destructive interference of laser beams?

  • tomprice
  • · Replies 25 ·
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25

Undergrad Persistence of Vision: Intensity of Green Circle?

  • bikfreak
  • · Replies 1 ·
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1

High School What causes the faint blue light when peeling off elastic tape in a dark room?

  • SpitfireAce
  • · Replies 2 ·
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2

Undergrad Diffraction effects and wavelengths

  • LTP
  • · Replies 6 ·
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6

Graduate Thin Film Interference problem

  • sdobbers
  • · Replies 2 ·
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2

Undergrad How do two waves travel through eachother, coming out unchanged?

  • kcodon
  • · Replies 10 ·
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10

Graduate Does gravity bend a photon's path in discrete Planck-length steps?

  • bassplayer142
  • · Replies 4 ·
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4

Undergrad Can a point on a rotating string exceed the speed of light?

  • adam84
  • · Replies 17 ·
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17

Graduate Can a Beam Condenser Focus a Laser to 0.048mm for Wave Measurement?

  • garydia1
  • · Replies 3 ·
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3

Undergrad Why is single slit diffraction minimum at a sin θ = mλ?

  • j-lee00
  • · Replies 1 ·
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1

Undergrad Understanding Thomson Scattering for Non-Experts

  • cscott
  • · Replies 3 ·
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3

Undergrad How does intensity vary across screen in single slit diffraction?

  • j-lee00
  • · Replies 1 ·
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1

High School What Causes the Distortion of Light During Heatwaves?

  • AFG34
  • · Replies 3 ·
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3

Undergrad Absorption of Light and Energy Conservation

  • scienceteacher
  • · Replies 1 ·
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1

Undergrad Double slit pattern with central minimum instead of maximum

  • Yakult
  • · Replies 5 ·
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5

Undergrad Why do incandescent bulbs emit mostly heat instead of visible light?

  • neelakash
  • · Replies 3 ·
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3

Graduate Why do mirrors deflect light based on electron configuration?

  • yyouth24
  • · Replies 10 ·
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10

Graduate Finding wavelength from refractive index and plasma frequency

  • virgileso
  • · Replies 1 ·
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1

High School What Is a Wood's Replica Grating and How Was It Used in Optics?

  • eitsrik
  • · Replies 2 ·
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2

Undergrad How come no interferance takes place

  • The_Thinker
  • · Replies 11 ·
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11

Undergrad Optical computers and the speed of light

  • 111111
  • · Replies 4 ·
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4

High School Calculating Light Level at a Point

  • cmdrico7812
  • · Replies 1 ·
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1

High School What is the significance of a 5.0 mW Point Light Source?

  • pardesi
  • · Replies 3 ·
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3

High School How does a light sensor work?

  • Phillips2207
  • · Replies 2 ·
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2

Undergrad Does the Energy of Laser Depend on Wavelength or Photon?

  • Ben Hom Chen
  • · Replies 7 ·
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7

Graduate What is Optical Parametric Generation and its Applications?

  • momentum_waves
  • · Replies 6 ·
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6

Graduate How does Fermat's principle explain the shape of a lens in Feynman's derivation?

  • neworder1
  • · Replies 1 ·
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1

Graduate Where does the energy go in destructive interference of light?

  • Miracles
  • · Replies 12 ·
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12

Graduate Single-slit diffraction and wave nature of light

  • pardesi
  • · Replies 4 ·
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4

Undergrad Nature of photons presented in high school text books

  • hl_world
  • · Replies 6 ·
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6

Undergrad What is the Relationship Between Intensity (I) and Power (P) of Light?

  • pardesi
  • · Replies 8 ·
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8

High School What is Huygens' principle and what does it mean?

  • pardesi
  • · Replies 4 ·
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4

Graduate Electric field approach to Young's double slit experiment using Huygens principle

  • pardesi
  • · Replies 2 ·
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2

Undergrad How do I accurately measure the size of an object using CCTV lenses?

  • bobjim
  • · Replies 1 ·
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1

Graduate How Does the Envelope of a Light Wavepacket Change at a Media Interface?

  • harvey_dog
  • · Replies 1 ·
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1

Graduate Deconvolution of Spectra for Near-Infrared Astronomical Instruments

  • Deckard
  • · Replies 1 ·
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1

Is the Height of Light Quantifiable?

  • stove167
  • · Replies 1 ·
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1

Graduate Why does Fresnel's law only use 2 boundary conditions compared to Maxwell's 4?

  • yavuznuri
  • · Replies 3 ·
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3

Undergrad Difference between nits, candela, lumen, and lux

  • Twinbee
  • · Replies 13 ·
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13

Graduate What causes the refractive index to differ between materials in QED?

  • jobyts
  • · Replies 3 ·
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3

Undergrad How do non-metallic surfaces reflect light if they lack free electrons?

  • tom12519
  • · Replies 7 ·
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7

High School Who Specializes in Infrared Technology (IR LED Diodes)?

  • V1ktor
  • · Replies 2 ·
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2

Graduate Does Light Have Mass and Can It Travel at Light Speed?

  • Foxcroft
  • · Replies 5 ·
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5

High School Why Does Blue Light Bend More than Red Light Through a Prism?

  • erjkism
  • · Replies 5 ·
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5

Graduate How Do Radio Receivers Isolate Specific Frequencies from a Combined Signal?

  • Spoonboy
  • · Replies 9 ·
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9

High School I want to ask you about exam questions about wave and light

  • starking
  • · Replies 4 ·
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4

Graduate What causes the Lamb shift in hydrogen?

  • pallidin
  • · Replies 2 ·
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2

Graduate How Does the Optico-Mechanical Analogy Explain Light Behavior in Physics?

  • Helios
  • · Replies 1 ·
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1

Undergrad Single slit diffraction bright fringe's width

  • Koveras00
  • · Replies 6 ·
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6

Graduate Light Going Backwards: Explained by Rochester

  • pallidin
  • · Replies 1 ·
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1

High School Measuring Intensity of Sources of Light

  • shaddy
  • · Replies 3 ·
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3

Where can i find a page to get laser simulations or laser models?

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

Undergrad Increasing efficiency of PV cell

  • techguy
  • · Replies 1 ·
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1

High School Utterly Noob ? What happens to light?

  • MagikRevolver
  • · Replies 21 ·
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21

Undergrad Error measurement in time of flight tests

  • bassplayer142
  • · Replies 4 ·
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4

High School Does the Earth move toward you when you fall?

  • ywd
  • · Replies 17 ·
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17

Graduate Why does blackbody radiation lack elemental spectral lines?

  • Chi Meson
  • · Replies 7 ·
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7

Undergrad Concept behind levitating object mirage

  • Numzie
  • · Replies 1 ·
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1

Undergrad Is Diffraction a Result of Wavefront Evolution?

  • prashant3507
  • · Replies 12 ·
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12

Undergrad Diffraction and double slit interference

  • prashant3507
  • · Replies 2 ·
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2

Graduate Understanding Wave Impedence: When \eta < \eta_0

  • Swapnil
  • · Replies 1 ·
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1

Has this problem been solved?

  • enricfemi
  • · Replies 3 ·
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3

Graduate Single slit diffraction concept issue

  • hunty
  • · Replies 8 ·
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8

Undergrad How do we know light from distant stars isn't a reflection?

  • jobyts
  • · Replies 1 ·
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1

Graduate Does circularly polarized light flip handedness when reflected?

  • Sean Torrebadel
  • · Replies 1 ·
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1

High School Why can't you see your reflection on notebook paper?

  • Holocene
  • · Replies 4 ·
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4

High School Speed of Light = 12000 Lunar Orbits/Earth Day ?

  • tdcaupv
  • · Replies 4 ·
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4

Undergrad What Is the Physics Behind White Light and Color Mixing?

  • NanakiXIII
  • · Replies 8 ·
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8

Graduate Materials producing diffuse acoustic reflections

  • dimensionless
  • · Replies 3 ·
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3

Graduate What is the Relation Between Velocity and Complex Refractive Index?

  • Angelos K
  • · Replies 9 ·
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9

Graduate Laser-Ionosphere Interaction: A Possibility?

  • nuncoop
  • · Replies 3 ·
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3

Graduate Where is the energy when two photons superimpose?

  • flame_cmh
  • · Replies 7 ·
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7

Undergrad What is the space between two consecutive grooves on the CD

  • thuanthuan
  • · Replies 1 ·
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1

Undergrad Sending InfraRed Signal to RS 232: Circuit Requirements

  • N468989
  • · Replies 2 ·
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2

Undergrad Refraction of Light: Energy Source Puzzle

  • Steve B.
  • · Replies 1 ·
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1

High School Light through difrent substances

  • phildoe
  • · Replies 6 ·
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6

Undergrad How Does Light Behave According to Newton's Third Law?

  • sofakingdom
  • · Replies 6 ·
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6

Graduate Polarization Ellipse: Understanding 2*Psi Angle

  • Steleo
  • · Replies 1 ·
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1

High School Why Does Passing Current Heat Wolfram Filament in Light Bulb?

  • yyouth24
  • · Replies 9 ·
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9

Graduate Why does the second UV mirror lose more energy than the first?

  • S.Hollas
  • · Replies 8 ·
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8

High School Building a solar reflector or lens under $10 to melt wax

  • Tom McCurdy
  • · Replies 3 ·
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3

High School Difference between flame and light

  • jobyts
  • · Replies 1 ·
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1

Graduate Why does the sum of incoherent light sources result in non-zero intensity?

  • fantispug
  • · Replies 3 ·
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3

Graduate How Much Oxygen Is Needed for Light Bulb Filament Oxidation in a Fire?

  • j.mcdowell@mcdo
  • · Replies 1 ·
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1

Undergrad How does water vapor affect the expansion of butane in a lighter?

  • kateman
  • · Replies 7 ·
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7

Undergrad Can light travel faster than the speed of light?

  • N468989
  • · Replies 11 ·
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11

Undergrad Why do mixed light waves keep their individual properties?

  • jobyts
  • · Replies 8 ·
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8

High School Experiment with Interesting Light Wave Properties

  • Holocene
  • · Replies 3 ·
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3

Optics-Interferences in light's wave

  • manuelcajas
  • · Replies 3 ·
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3

High School Is Fluorescent Lighting Polarized?

  • cchan
  • · Replies 2 ·
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2

High School Is Light Considered Matter in Physics?

  • swerdna
  • · Replies 29 ·
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29