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Undergrad Why does the two concave mirror illusion looks realistic wh

  • disgruntledbot
  • · Replies 3 ·
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3

Graduate Photonic crystals as metamaterials

  • physics_hp
  • · Replies 1 ·
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1

High School Does a larger telescope mirror collect more light to see dimmer stars?

  • Erenjaeger
  • · Replies 3 ·
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3

High School Why can't you see a light source in water when total internal reflection occurs?

  • RubinLicht
  • · Replies 10 ·
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10

Graduate Why don't superconductors perfectly reflect all electromagnetic radiation?

  • Tazerfish
  • · Replies 2 ·
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2

Undergrad Can light sails really power starships?

  • thetexan
  • · Replies 6 ·
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6

High School An interesting phenomena with light I experienced

  • Karadra
  • · Replies 1 ·
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1

High School Geometric and logical interpretation of phase and phase difference

  • ajay.05
  • · Replies 5 ·
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5

High School Can a phone camera detect transparent liquids invisible to the eye?

  • Swepz
  • · Replies 9 ·
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9

High School How to calculate the real size of an object from image

  • DetectiveT
  • · Replies 3 ·
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3

High School Image of a virtual object by a plane mirror

  • physicsmaths1613
  • · Replies 4 ·
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4

Undergrad Math in the thin lens equation

  • Kuzon
  • · Replies 5 ·
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5

Undergrad Plasmonic pixels could be used to make non-fading paint

  • hagar
  • · Replies 1 ·
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1

Graduate A System with Velocity More than Speed of the Light

  • Gh. Soleimani
  • · Replies 8 ·
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8

Graduate Ray transformation of a 3d lens?

  • Artlav
  • · Replies 8 ·
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8

High School What color appears when blue light passes through a green filter?

  • Pencil123
  • · Replies 4 ·
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4

Do soap bubbles reflect sound?

  • spareine
  • · Replies 4 ·
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4

Undergrad Do Photons from one star affect other stars?

  • ChrisPNZ
  • · Replies 5 ·
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5

Graduate Diffraction - Amplitude and Phase

  • LmdL
  • · Replies 4 ·
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4

Undergrad Speed of light; source; frame of reference

  • LLT71
  • · Replies 5 ·
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5

Undergrad How can I create an adjustable liquid lens system for windows?

  • Kathrin
  • · Replies 18 ·
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18

Graduate Can Light Affect Spacetime without Being Affected?

  • David Lahav
  • · Replies 4 ·
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4

Undergrad How can we see the entire sun if so little sunlight reaches Earth?

  • FQVBSina_Jesse
  • · Replies 21 ·
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21

Undergrad Can any wavelength be produced by electron transitions in atoms?

  • sangho
  • · Replies 3 ·
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3

Undergrad Why does light reflect at exactly 180 degrees?

  • Random Stuffs
  • · Replies 21 ·
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21

Graduate Proof of image formation property of spherical mirrors

  • Gabriel Maia
  • · Replies 1 ·
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1

High School Where does the apparent depth equation d'=d(n2/n1) come from?

  • aeri
  • · Replies 4 ·
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4

Graduate Does increasing kVp in x-ray production increase the number of x-ray photons?

  • BobP
  • · Replies 2 ·
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2

High School Forming an Image with a Convex Lens

  • Akshi007
  • · Replies 2 ·
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2

Undergrad Does light bending around objects mean it's particles, not waves?

  • DREADGE
  • · Replies 12 ·
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12

Graduate Deriving Laser Intensity proportional to N Molecules

  • TheCanadian
  • · Replies 4 ·
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4

Graduate Brewster's Angle and P-Polarization in Laser Design

  • says
  • · Replies 2 ·
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2

Graduate [Diffraction] Can a glass slide magnify an object on it?

  • airoll
  • · Replies 1 ·
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1

Graduate Near Lightspeed Space Exploration - Query

  • ThreeiedLearning
  • · Replies 1 ·
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1

The Interaction of Sound and Light - Comments

  • klotza
  • · Replies 4 ·
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4

High School Can a fan in vacuum push against light like a solar sail does?

  • Stefen
  • · Replies 22 ·
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22

Graduate How can we detect photons without mass?

  • Keiran OConnor
  • · Replies 5 ·
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5

Undergrad Does light always travel at light speed?

  • Zahidur
  • · Replies 48 ·
2
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48

Graduate Why doesn't Gaussian beam interference show the π phase shift after focal plane?

  • davidbenari
  • · Replies 3 ·
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3

Undergrad Why can't I kill the ice cubes >:o (in a Microwave Oven)

  • Tazerfish
  • · Replies 10 ·
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10

Graduate Is it possible to see Newton rings in CT (xray) images?

  • ireland01
  • · Replies 2 ·
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2

Graduate Photons always take the quickest route

  • Green dwarf
  • · Replies 17 ·
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17

Undergrad Infrared rays can't be used outside for communicaiton

  • Geek007
  • · Replies 4 ·
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4

Graduate Effect of Collimated lens on Gauss Beam

  • ezgie
  • · Replies 6 ·
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6

Undergrad Struggling with light calculations (incident power output)

  • enjoyice
  • · Replies 2 ·
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2

Graduate Coupling a ccd to a surgical loupe

  • Rodrigo Bordin
  • · Replies 10 ·
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10

Undergrad Blocking violet light leakage in UV lights

  • Garlic
  • · Replies 7 ·
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7

Undergrad Does Microwave support only Line of sight communication LOS?

  • Geek007
  • · Replies 2 ·
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2

Undergrad What is the meaning of the speed of light "squared"?

  • RandyD123
  • · Replies 18 ·
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18

High School Why do reflected rays from a concave mirror not converge at one point?

  • simplescience
  • · Replies 12 ·
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12

Graduate Optical band gap of a cobalt ferrite

  • sounouhid
  • · Replies 6 ·
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6

Graduate IF you could travel faster than light, would time cease or

  • Tap Banister
  • · Replies 5 ·
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5

Undergrad Why does cos(phi1- phi 2 +kX)=cos(kx)?

  • thegirl
  • · Replies 5 ·
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5

Graduate Few questions on light interacting with atoms

  • victorhugo
  • · Replies 4 ·
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4

High School What is causing the strange light phenomenon in my bedroom?

  • Dazzletoad
  • · Replies 6 ·
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6

Undergrad What causes light to bend in refraction

  • kent davidge
  • · Replies 3 ·
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3

Undergrad Do non-monochromatic "waves" exist in dispersive media?

  • greypilgrim
  • · Replies 7 ·
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7

Undergrad Trajectory of scattered alpha particle

  • KT KIM
  • · Replies 1 ·
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1

Undergrad Do uncoated contact lens surfaces reflect 4% of light like other interfaces?

  • cube137
  • · Replies 3 ·
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3

Undergrad Want to build multi-spectral imaging device for cheap

  • jaysorbitals
  • · Replies 1 ·
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1

High School Angle of incidence and refraction

  • Zelko
  • · Replies 2 ·
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2

Graduate Why does circular polarization handedness reverse at normal incidence reflection?

  • MMS
  • · Replies 1 ·
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1

Graduate The principle of least action and diffraction

  • StrawberrySaturn
  • · Replies 1 ·
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1

Graduate Can light be used to communicate with distant objects in space?

  • Medd Newdanni
  • · Replies 26 ·
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26

Undergrad Confusion With Derivation of Fresnel Equations

  • bananabandana
  • · Replies 1 ·
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1

Undergrad Does higher resistance increase or decrease brightness in lightbulbs?

  • n124122
  • · Replies 7 ·
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7

Graduate How to find reflectance for partially polarized light using Fresnel equations

  • tanveers
  • · Replies 1 ·
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1

High School Does Light Speed Change in Water?

  • hipokrytus
  • · Replies 10 ·
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10

Graduate Communication faster than light or where is my mistake?

  • jakeliuns
  • · Replies 3 ·
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3

Undergrad Can polarized light be recovered after passing through multiple mediums?

  • GPS443556
  • · Replies 3 ·
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3

High School How does lightning work? (one strike or multiple strikes?)

  • ARC123
  • · Replies 4 ·
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4

Undergrad Lower speed of light inside a transparent medium

  • George K
  • · Replies 17 ·
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17

High School Can two meniscus lenses with air gap act as double convex?

  • Mohab
  • · Replies 3 ·
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3

High School Can the speed of light change?

  • kolleamm
  • · Replies 10 ·
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10

Undergrad Requirement of two vernier scales in a spectrometer?

  • sampanna pahi
  • · Replies 2 ·
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2

Graduate Do superconducting sheets reflect gravitational waves?

  • nomad2415
  • · Replies 3 ·
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3

Graduate Mo Anode X-ray Filtering in Mammography: Why is Mo Ideal?

  • BobP
  • · Replies 3 ·
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3

Graduate Why is the incident plane wave field set to 1 in diffraction theory?

  • davidbenari
  • · Replies 9 ·
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9

Graduate No double refraction (birefrigence)?

  • PFfan01
  • · Replies 22 ·
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22

Graduate Relation between the absorption coefficient and the transmittance spectrum

  • sounouhid
  • · Replies 2 ·
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2

Graduate Phase cancellation of light - Is it possible to make light disappear?

  • infinity3000
  • · Replies 38 ·
2
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38

High School Connect two objects with visible light

  • Ankur Shah
  • · Replies 2 ·
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2

Undergrad What is the Verdet Constant of SF59 Glass at 650nm?

  • wilsonaj4
  • · Replies 1 ·
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1

Graduate Can fast objects get cooked by Cosmic Microwave background?

  • jfizzix
  • · Replies 4 ·
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4

Graduate What Happens to Our Vision with Negative Refraction in Lenses?

  • cube137
  • · Replies 1 ·
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1

Graduate Central force and acceleration in the polar direction

  • Soren4
  • · Replies 4 ·
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4

Graduate Backscatter setup - one way mirror

  • vitom001
  • · Replies 1 ·
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1

Undergrad Best way to separate almost parallel light rays?

  • andresB
  • · Replies 11 ·
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11

High School How does light travel through semi-opaque surfaces?

  • kasykid
  • · Replies 3 ·
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3

Undergrad How much Gravity is needed to bend light?

  • ARC123
  • · Replies 2 ·
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2

Graduate Why do incoherent light sources just add intensities?

  • person_random_normal
  • · Replies 3 ·
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3

High School Wavelengths corresponding to fractions of nanometers?

  • DavidReishi
  • · Replies 29 ·
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29

High School What's the difference between a virtual and a real image

  • polaris90
  • · Replies 10 ·
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10

Undergrad Apparent depth conceptual question

  • Clack_Attack
  • · Replies 7 ·
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7

Undergrad Why do Lasers need to be cooled?

  • says
  • · Replies 3 ·
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3

Graduate Managing X-Ray Hardness and Low Frequency Use in Tissue Analysis

  • alex36
  • · Replies 5 ·
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5

Graduate Can Planck length set an upper limit on photon energy?

  • mathman
  • · Replies 9 ·
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9

Undergrad Infinity Focal Points of Plane Mirror

  • NaukowiecGirl
  • · Replies 6 ·
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6

Undergrad Finding extinction index K when wave frequency equals resonance frequency

  • Carmen_8
  • · Replies 3 ·
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3

Undergrad Distance between fringes in an interference pattern?

  • NatFex
  • · Replies 4 ·
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4