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Undergrad Is the Velocity of Light Undefined?

  • avito009
  • · Replies 15 ·
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15

Undergrad How many times does a atom excitate when light shines onto it?

  • whattahw
  • · Replies 3 ·
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3

Undergrad How do i calculate this -- Using numerous parabolic mirrors to focus light

  • Ali Yuksel
  • · Replies 24 ·
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24

Graduate How does Irradiance change with magification?

  • ppoonamk
  • · Replies 1 ·
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1

Graduate Off-Axis Mirror Collimated Beam Contour

  • Kimusubi
  • · Replies 4 ·
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4

High School Why is angle of incidence equal to angle of reflection?

  • prashant13b
  • · Replies 4 ·
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4

Graduate Linear Component of Polarization - Mathematical transformation

  • spookyfw
  • · Replies 1 ·
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1

Graduate What if photons were not particles at all?

  • JocelynL
  • · Replies 11 ·
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11

High School Absorption of light in a mirror

  • richardz03
  • · Replies 6 ·
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6

Undergrad How does absorption affect light and image color?

  • richardz03
  • · Replies 2 ·
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2

Undergrad Understanding Lightning: Causes of Ionisation and its Impact on Atmosphere

  • avito009
  • · Replies 4 ·
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4

Graduate Modeling index of refraction of dilute gases

  • Habeebe
  • · Replies 1 ·
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1

Graduate Does uranium abundance affect lightning frequency?

  • damosuz
  • · Replies 2 ·
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2

Graduate Measurement of irradiance of 2 beam interference

  • ppoonamk
  • · Replies 3 ·
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3

Undergrad How to observe Fresnel diffraction at home?

  • jinawee
  • · Replies 1 ·
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1

Graduate Bi-directional transport of light

  • bluetooth
  • · Replies 5 ·
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5

Graduate Refractive index for side glow in plastic-coated cylinder

  • acogs
  • · Replies 1 ·
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1

Undergrad Image seen by human eye through a convex lens

  • mayer
  • · Replies 2 ·
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2

Graduate Thin film interference in water layer and anti-reflective coating design

  • mayer
  • · Replies 4 ·
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4

Graduate Goldstein Mechanics example motion of one particle in polar coordinates

  • Jillds
  • · Replies 5 ·
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5

Graduate Very small holographic laser projectors and diffraction.

  • Pds3.14
  • · Replies 1 ·
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1

Graduate What does r represent in the Gaussian beam intensity formula?

  • Carlos Criollo
  • · Replies 10 ·
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10

Graduate Can a photon have mass when travelling through a medium?

  • Prime
  • · Replies 21 ·
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21

Undergrad How does the brain perceive depth with one eye?

  • hjhgfj
  • · Replies 11 ·
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11

Graduate One-dimensional Uniform plane wave

  • avinamaurya
  • · Replies 1 ·
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1

Undergrad Why does a phase shift occur on reflection?

  • PhysicsStudnt
  • · Replies 4 ·
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4

Undergrad Why do different types of lenses have different effects on image size and focus?

  • Hereformore
  • · Replies 2 ·
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2

Graduate Van Cittert Zernike Theorem and associated Optical phenomenon

  • Tachyonomad
  • · Replies 3 ·
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3

Undergrad Difference between optical and geometrical length in optical path

  • deni
  • · Replies 5 ·
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5

High School Refraction of light in denser medium

  • aditya ver.2.0
  • · Replies 2 ·
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2

Graduate Circular polarization phase difference

  • avinamaurya
  • · Replies 5 ·
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5

Graduate What Lenses Are Needed for Minimal Movement and Infinity Focus?

  • artiswar
  • · Replies 3 ·
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3

Graduate The masking effect of the sky scattering of visible light

  • jeremyjr
  • · Replies 3 ·
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3

Graduate Where do I find Nonlinear Susceptibility Tensor Values?

  • ggb123
  • · Replies 1 ·
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1

Graduate Optical Transfer Function of a microscope

  • u0362565
  • · Replies 3 ·
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3

Graduate What is the refractive index of asphalt and its relation to polarization?

  • spareine
  • · Replies 12 ·
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12

High School Measuring refractive index of water

  • Daisy
  • · Replies 3 ·
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3

Undergrad Identifying bright fringes in Young's double slit interference data

  • JosefMTD
  • · Replies 5 ·
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5

Graduate How can a photon exists on its own without a mass?

  • mvbn
  • · Replies 6 ·
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6

Graduate What Determines the Resolution Limit of a Microscope?

  • eoghan
  • · Replies 3 ·
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3

Finding 12.7mm and 13mm dia wedge prisms

  • Mike_In_Plano
  • · Replies 2 ·
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2

Graduate Photon that "fits" into its schwarzschild radius

  • birulami
  • · Replies 4 ·
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4

High School Why do we see spectral LINES, not circles/triangles etc?

  • girlinphysics
  • · Replies 11 ·
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11

Undergrad Does light reflect at the critical angle or refract along the boundary?

  • Murtuza Tipu
  • · Replies 4 ·
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4

High School Why does it look like this plane is floating in the distance?

  • sherzod
  • · Replies 2 ·
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2

Undergrad Why does constant speed of light resemble dominos absorbing and reemitting?

  • andy_g
  • · Replies 13 ·
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13

High School What happens to a wave when it encounters interference?

  • Monster007
  • · Replies 8 ·
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8

Graduate Collimating a Monochromatic Beam of Light

  • dartz003
  • · Replies 1 ·
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1

Undergrad Are photons particles or waves when traveling from stars to Earth?

  • thetexan
  • · Replies 5 ·
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5

High School How can I see Infra-Red and Ultra Violet waves?

  • trickslk
  • · Replies 11 ·
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11

Undergrad Direction of reaction force when an object reflects off a wall at an angle

  • bnvbnv
  • · Replies 6 ·
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6

High School Effect of combining two source of light

  • mohammadyou
  • · Replies 3 ·
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3

Undergrad Radio Wave Propagation: Effects of Metal Objects

  • barry.haworth
  • · Replies 2 ·
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2

Undergrad Phase change when sound reflects off a closed end

  • mayer
  • · Replies 3 ·
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3

Graduate Maximization of wave interference

  • V0ODO0CH1LD
  • · Replies 7 ·
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7

Undergrad How Should We Calculate Sound Wave Superposition Intensity?

  • Jackson Lee
  • · Replies 20 ·
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20

Graduate Is 299,792,458 m/s really the max speed of light

  • OutOfTheBox
  • · Replies 6 ·
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6

Undergrad Matrix method for calculating retinal image size from object distance

  • Jet Black
  • · Replies 1 ·
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1

Graduate Tourmaline in polarization experiments

  • mishima
  • · Replies 7 ·
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7

Graduate What happens to light after interference?

  • Dadface
  • · Replies 7 ·
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7

Graduate Why do dipoles oscillate in the polarization direction of refracted light?

  • Jabbu
  • · Replies 7 ·
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7

Undergrad Apparent reversal by stroboscope

  • vin300
  • · Replies 1 ·
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1

Graduate Schlieren Imaging / wave optics

  • Goodver
  • · Replies 1 ·
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1

Undergrad What is the relationship between numerical aperture and resolution in lenses?

  • fog37
  • · Replies 1 ·
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1

High School Why do LCD TVs show color spectrum when light shines on them?

  • Jimmy87
  • · Replies 2 ·
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2

Graduate What is the minimum beam width achievable at 50GHz microwave frequency?

  • Delta2
  • · Replies 3 ·
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3

Undergrad Why we cannot see light from a conducting wire?

  • ggandy
  • · Replies 4 ·
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4

Undergrad Reflection angles off mirrors and refraction through lenses

  • hongiddong
  • · Replies 9 ·
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9

Undergrad Why does light both reflect and refract at a glass surface?

  • tkoos2
  • · Replies 2 ·
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2

Graduate How to Learn More About Airy Beams?

  • nicetonietzche
  • · Replies 1 ·
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1

Graduate How can I go from high school level to understanding advanced optics?

  • nicetonietzche
  • · Replies 1 ·
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1

Undergrad If a gas is bombarded with light, will atoms emit photons of equal energy?

  • radaballer
  • · Replies 4 ·
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4

Graduate Birefringence and Automotive Window Tinting

  • RedneckPhysics
  • · Replies 9 ·
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9

Undergrad Light intensity and wave behavior of light

  • ViolentCorpse
  • · Replies 4 ·
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4

Undergrad Are Photons Particles or Waves in the Nature of Light?

  • Manraj singh
  • · Replies 8 ·
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8

Undergrad Which gases absorb and emit photons at equal frequency?

  • radaballer
  • · Replies 1 ·
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1

Undergrad How do you make holograms and what equations describe them?

  • ghost313
  • · Replies 11 ·
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11

Undergrad Do I have the right understanding for a wavefront for sound and light?

  • jlyu002@ucr.e
  • · Replies 4 ·
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4

High School Constructive and destructive waves with equal amplitudes?

  • hongiddong
  • · Replies 10 ·
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10

High School Relationship between light and sound

  • kalkish
  • · Replies 6 ·
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6

Graduate Can a half-reflective, half-black spaceship be propelled by starlight and the CMBR?

  • Helios
  • · Replies 13 ·
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13

Graduate Why does light have a π phase change after traveling 2nd in a material?

  • manimaran1605
  • · Replies 1 ·
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1

Undergrad Does Increasing Light Wave Amplitude Mean More Photons?

  • SteveinLondon
  • · Replies 1 ·
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1

Undergrad Effective refractive index when two transparent medium are joined in s

  • jayeshtrivedi
  • · Replies 3 ·
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3

Graduate Resolution (visual acuity) and screen discreteness

  • fog37
  • · Replies 3 ·
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3

High School Shortest distance light wave can travel?

  • devanshshah
  • · Replies 15 ·
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15

Undergrad Is It Safe and Feasible to Create Plasma in a Microwave Using Helium Gas?

  • Sciencekid
  • · Replies 2 ·
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2

Undergrad What Causes the Formation of Plasma in a Microwave?

  • Physicist50
  • · Replies 2 ·
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2

High School Radio waves for two way communication?

  • Govind_Balaji
  • · Replies 4 ·
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4

Graduate Proof of Fermat's principle of least time?

  • Nick Jackson
  • · Replies 1 ·
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1

Graduate Aligning Images with Right Angle Prisms

  • Jane11
  • · Replies 15 ·
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15

Undergrad Wavenumber Units: Standard or Free-for-All?

  • JesseC
  • · Replies 2 ·
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2

Undergrad Why does light take an extremum path according to Fermat's Principle?

  • Nitin Gupta
  • · Replies 1 ·
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1

High School How does a lightning rod work?

  • Rosadoft
  • · Replies 2 ·
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2

Undergrad If density of object is slightly greater than density of fluid?

  • hongiddong
  • · Replies 7 ·
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7

High School What causes circular rainbow patterns when using 3D glasses and LCD screens?

  • Jimmy87
  • · Replies 2 ·
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2

Undergrad Why do sharp ends of blades attract?

  • PhysicoRaj
  • · Replies 34 ·
2
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34

Undergrad Can a wire grid used for polarizing also cause diffraction?

  • Dinheiro
  • · Replies 2 ·
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2

Graduate Modes - physical meaning and use

  • rucha.ad
  • · Replies 1 ·
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1

Undergrad Can an onboard light source propel a spacecraft?

  • pberrett
  • · Replies 8 ·
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8