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High School The diffrence between refraction of sound and light

  • Sjonsjon
  • · Replies 9 ·
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9

High School Is there any relation between wavelength and brightness?

  • tris_d
  • · Replies 111 ·
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Graduate Does spontaneous polarization exist in poled piezoelectric materials?

  • athosanian
  • · Replies 1 ·
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Graduate Snell's Law - complex angle of refraction (need complement )

  • einfall
  • · Replies 11 ·
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11

Graduate How to use interferometer for surface roughness calculations?

  • supernova1387
  • · Replies 3 ·
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3

Graduate Why does light diffract more when passing near the slit edge in Fraunhofer diffraction?

  • Ezio3.1415
  • · Replies 6 ·
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6

High School What is Order of Magnitude and Significant figures in any measurement?

  • ddnath
  • · Replies 1 ·
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1

High School Why does a plane mirror reverse left and right but not up and down?

  • DaTario
  • · Replies 24 ·
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24

Graduate What Happens to Massless Light at the End of Its Existence?

  • ianpaul12345
  • · Replies 4 ·
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4

Undergrad How Much Light Can Fiber Optic Cables Carry?

  • zplizzi
  • · Replies 4 ·
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4

Graduate Eigenfunction of a Jones Vector (System)

  • KasraMohammad
  • · Replies 4 ·
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4

Graduate Why are all non-principal sagittal rays considered skew?

  • ThereIam
  • · Replies 1 ·
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1

Graduate How Does Chiral Substance Affect the Propagation and Refraction of Light?

  • snorkack
  • · Replies 1 ·
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1

Graduate Optics Problem - Maximum Dipole Emission

  • AntSC
  • · Replies 3 ·
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3

Undergrad Why does wavelength affect reflection angle in diffraction gratings?

  • sliorbra
  • · Replies 5 ·
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5

High School Double Refraction: How It Works

  • Ezio3.1415
  • · Replies 4 ·
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4

Undergrad Questions about image formation in spherical mirrors

  • rishch
  • · Replies 22 ·
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22

Graduate Gamma Ray Laser, possible? Superior Weapon?

  • Snipez
  • · Replies 38 ·
2
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38

Graduate Observing an object as it moves one lightyear away

  • sandb232
  • · Replies 4 ·
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4

Graduate Theory of Systems of Rays question

  • LeonhardEuler
  • · Replies 4 ·
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4

Undergrad Suggestions for diffraction experiments?

  • 11thHeaven
  • · Replies 1 ·
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1

High School What kind of optics are these?

  • BlueIntegral
  • · Replies 4 ·
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4

High School Why doesn't light create sonic booms if it's a particle?

  • norhh
  • · Replies 5 ·
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5

Graduate Sending polarerized light through light fiber that is all jumbled up.

  • Spinnor
  • · Replies 4 ·
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4

Graduate Is There A Maximum Possible Photon Energy?

  • Poxyrom
  • · Replies 2 ·
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2

Undergrad Can a spherical spinning projectile oscillate in flight?

  • r2d222
  • · Replies 4 ·
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4

Graduate Do photons have momentum without mass?

  • ofeyrpf
  • · Replies 10 ·
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10

Undergrad Radio wave diffraction around a thin metallic cylinder

  • Eagle9
  • · Replies 9 ·
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9

Graduate Making point-like light sources for optical testing

  • Enthalpy
  • · Replies 5 ·
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5

Undergrad Does linearly polarized light become randomly polarized after diffuse reflection?

  • Ryker
  • · Replies 3 ·
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3

Undergrad [Lab]difference between diffraction grating and linear polarizer ?

  • genxium
  • · Replies 5 ·
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5

Undergrad Transmitting visible light via optical fiber

  • snowlion
  • · Replies 3 ·
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3

High School Light in vacuum and inverse square law

  • tris_d
  • · Replies 5 ·
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5

Undergrad Faster than the speed of light paradox

  • bystander1212
  • · Replies 15 ·
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15

Graduate Optical tweezers that not always atract but also repel

  • Fioda
  • · Replies 4 ·
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4

High School Microwave oven efficiency: why such varied estimates?

  • Homer D.
  • · Replies 5 ·
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5

Graduate Circularly Polarized Wave: Poynting Vector Analysis

  • xnoiz
  • · Replies 2 ·
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2

Undergrad What do focal points actually mean in real optical systems?

  • Breeze22
  • · Replies 6 ·
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6

Graduate Can this in any way be considered to be a circularly polarized wave?

  • DocZaius
  • · Replies 4 ·
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4

Graduate Can charged light exceed the speed of light in an electric field?

  • sjd0004
  • · Replies 14 ·
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14

Graduate Holographic grating - can we calculate efficiency for each order?

  • Turksen
  • · Replies 3 ·
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3

Graduate Laboratory work, magnification

  • nordmoon
  • · Replies 3 ·
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3

High School How do scanner optics use mirrors, lenses and CCD arrays?

  • mhdeia
  • · Replies 4 ·
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4

Undergrad Increase in Wavelength of an LED Immersed in Liquid Nitrogen

  • caleb5040
  • · Replies 1 ·
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1

Graduate What determines coherence in an optical system?

  • eschiesser
  • · Replies 7 ·
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7

Graduate Why can't we see around corners?

  • Erland
  • · Replies 15 ·
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15

High School Do we need a screen to view a real image?

  • hasankamal007
  • · Replies 8 ·
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8

Undergrad Understanding Signal Modulation in Optical Fiber Experiments

  • Aziza
  • · Replies 8 ·
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8

Graduate Can photon propulsion accelerate a 500-tonne spacecraft to 10 km/s?

  • Runei
  • · Replies 19 ·
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19

Undergrad How did Einstein determine the speed of light was a cosmic limit?

  • Niaboc67
  • · Replies 17 ·
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17

Undergrad Effective Refractive Index - Should be simple

  • nathangrand
  • · Replies 1 ·
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1

High School What is the importance of synchronized waves in interference?

  • bgq
  • · Replies 2 ·
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2

Undergrad Can light affected be affected by noise as other signals?I am not

  • zakee.fancy
  • · Replies 4 ·
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4

Graduate How Do You Calculate Total Absorption of a Sample from Its Absorbance Spectrum?

  • Rositta
  • · Replies 1 ·
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Graduate Transmission by pure scatterer layer

  • snorkack
  • · Replies 4 ·
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4

Graduate Why must there be a reflected wave at a boundary?

  • aaaa202
  • · Replies 2 ·
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2

Graduate Can Light Be Made Invisible Using Metamaterials and Graded Refractive Index?

  • jmmy
  • · Replies 4 ·
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4

Graduate Can Light Have Momentum Without Mass? A Question of Units

  • silvercrow
  • · Replies 9 ·
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9

Graduate Question on Photons and perception

  • Ryanw58
  • · Replies 8 ·
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8

Undergrad Does aperture size impact image resolution?

  • titaniumpen
  • · Replies 5 ·
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5

Graduate Cosmic microwave background question.

  • jaydnul
  • · Replies 1 ·
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1

Graduate Why should you feel lighter at equator if normal force is weaker?

  • fooly
  • · Replies 18 ·
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18

Graduate What happens to a photon wave packet when half out of a moving device?

  • PTopper
  • · Replies 8 ·
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8

Graduate Beam splitters cubes configurations

  • TheDestroyer
  • · Replies 3 ·
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3

Undergrad Book recommendation for learning physical optics from scratch

  • Shan K
  • · Replies 2 ·
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2

Undergrad Why does mercury's emission spectrum appear blue instead of an average color?

  • JosephK
  • · Replies 3 ·
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3

Undergrad What is the significance of wave numbers and polarization in physics?

  • zakee.fancy
  • · Replies 1 ·
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1

Undergrad If the solenoid covers the whole length of a shake flashlight, will it light up?

  • Spock2230
  • · Replies 5 ·
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5

Undergrad How do atoms release photons?

  • Physicist50
  • · Replies 6 ·
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6

High School Are there really 9,460,000 km in a light year?

  • Physicist50
  • · Replies 7 ·
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7

High School Can Yellow Light Split into Red and Green When Passed Through a Prism?

  • kevin_tee
  • · Replies 10 ·
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10

Graduate How do light years relate to the concept of time in physics?

  • Crazymechanic
  • · Replies 4 ·
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4

Cheap and Good Laser Safety Glasses

  • jspear
  • · Replies 3 ·
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3

Graduate Diffraction Transverse Wave Confusion

  • sarvesh0303
  • · Replies 12 ·
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12

Graduate Equal intensity light beams of different colors have equal amplitude?

  • mlgpawnstar
  • · Replies 4 ·
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4

High School Photon Speed when Bouncing off Moving Object

  • clok555
  • · Replies 2 ·
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2

High School Is space truly empty or is it filled with unseen forces and fields?

  • mani74
  • · Replies 7 ·
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7

Undergrad Why does wave velocity depend on frequency in a medium?

  • billiards
  • · Replies 33 ·
2
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Graduate Diffraction: Intensity in the double slit situation

  • assed
  • · Replies 2 ·
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2

Undergrad Why is light affected by gravity?

  • Switchblade
  • · Replies 16 ·
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16

Graduate Can photons orbit stably around black holes?

  • Xavius
  • · Replies 12 ·
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12

Graduate Classical optics: Lambda-quarter plates

  • Niles
  • · Replies 3 ·
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3

Graduate How do i derive the relation between coherence time and bandwidth

  • walkingpoet
  • · Replies 2 ·
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2

Undergrad I with my physics lab questions about diffraction grafting

  • kreb11
  • · Replies 1 ·
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1

Graduate Why optically active molecules rotate light?

  • Trave11er
  • · Replies 2 ·
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Undergrad What is the difference between spectral irradiance, irradiance, and average irradiance?

  • nejidoreb
  • · Replies 1 ·
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1

Graduate Can You Calculate Radiance from Irradiance Outputs Using a Spectroradiometer?

  • nejidoreb
  • · Replies 1 ·
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1

Graduate Is possible to build an optical trap with non-laser light?

  • Hecktor
  • · Replies 3 ·
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3

High School Can Wet Cloth on a Telescope's Mirror Speed Up Cooling?

  • gloglo
  • · Replies 5 ·
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5

Undergrad Can mirrors be designed to reflect specific wavelengths?

  • ncnc85
  • · Replies 3 ·
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3

Graduate Could light be a particle that is unobservable as an actual particle?

  • applebob
  • · Replies 7 ·
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7

Race across the Universe:Who is on edge? Force Vs. Light

  • Reogl
  • · Replies 13 ·
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13

High School Does stopping a very fast object makes it lighter?

  • Reogl
  • · Replies 18 ·
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18

High School Why does myopia develop from prolonged near work?

  • Puneeth423
  • · Replies 2 ·
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2

High School Dispersion by a rectangular prism

  • Puneeth423
  • · Replies 1 ·
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1

Undergrad So why does the atmosphere block gamma rays but not UV rays?

  • jaydnul
  • · Replies 1 ·
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1

Graduate Maximum Information transferrable in Radio Waves

  • ANarwhal
  • · Replies 11 ·
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11

Undergrad Energy level after photon absorbtion

  • Johnahh
  • · Replies 3 ·
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3

Undergrad What if light passes from lighter to denser medium

  • cooper607
  • · Replies 2 ·
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2

Undergrad What is the relationship between stopping potential and the intensity of light?

  • tnecniv
  • · Replies 3 ·
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3