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Undergrad Circular interference from the equation of a hyperbola

  • dimestorelaser
  • · Replies 7 ·
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7

Undergrad What are virtual sources in Fresnel's biprism experiment?

  • gracy
  • · Replies 41 ·
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41

Graduate Optics -- caustic curve equation

  • Archit Nanda
  • · Replies 1 ·
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1

Undergrad Bounce angle of a body off a sphere

  • Robben
  • · Replies 5 ·
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5

Undergrad Testing Low Pass Optical Filter

  • optotinker
  • · Replies 2 ·
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2

Undergrad Diffraction of light in a tunnel

  • Nikitin
  • · Replies 2 ·
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2

Undergrad Velocity in plane polar coordinates

  • marcom
  • · Replies 2 ·
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2

Undergrad Focal length of the optical system

  • Raghav Gupta
  • · Replies 3 ·
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3

Undergrad What happens when an object is at the focus point of a lens?

  • Raghav Gupta
  • · Replies 10 ·
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10

Graduate Radiance change with light distance

  • Gadersd
  • · Replies 4 ·
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4

Graduate Are all physics theories reliant on "the speed of light"?

  • ttvlr
  • · Replies 5 ·
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5

Undergrad How Do We Perceive Violet with Only Three Color Detectors in Our Eyes?

  • resurgance2001
  • · Replies 36 ·
2
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36

High School A good introduction on light propagation mode

  • ian2015
  • · Replies 1 ·
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1

Undergrad What does this subscript signify?

  • shanepitts
  • · Replies 4 ·
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4

Graduate Calculate refractive index from reflectance data

  • Mythili
  • · Replies 3 ·
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3

Graduate Quarter Wave Plates and Interference

  • protag0ras
  • · Replies 1 ·
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1

Graduate Relation between intensity and amplitude

  • albega
  • · Replies 1 ·
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1

Undergrad Can interference occur without the use of single slit?

  • Ahsan Khan
  • · Replies 46 ·
2
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46

Graduate Why does light slow down only above the phonon spectrum frequency?

  • bubblewrap
  • · Replies 2 ·
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2

Graduate Light intensity and index of refraction

  • Nikitin
  • · Replies 10 ·
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10

High School Light Intensity: Is it Decreasing at 1/r2?

  • hiltac
  • · Replies 3 ·
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3

Undergrad Does diffraction limit optical system resolution?

  • Kamdinsh
  • · Replies 7 ·
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7

Undergrad Polarization of clear plastic - a puzzle

  • alanf
  • · Replies 2 ·
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2

Undergrad Does the Refractive Index of Materials Change with Temperature and Wavelength?

  • sjumesh
  • · Replies 6 ·
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6

High School Why can concave mirrors be both spherical and parabolic?

  • bubblewrap
  • · Replies 9 ·
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9

High School Speed of light and sound in the same medium

  • Ignis Radiis
  • · Replies 2 ·
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2

Graduate How can I show that the amplitude of a reflected wave?

  • dam
  • · Replies 3 ·
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3

Graduate Solar panels and optical parametric oscillator

  • Domenico94
  • · Replies 10 ·
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10

High School Difference between impulse and magnitude of force

  • Za Kh
  • · Replies 3 ·
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3

Graduate Is a given expression a travelling wave?

  • shanepitts
  • · Replies 2 ·
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2

High School Does sound refract like light?

  • Raghav Gupta
  • · Replies 16 ·
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16

Undergrad Diffraction Gratings: Understanding Spectroscopes Using Pringles Tubes

  • Jimmy87
  • · Replies 4 ·
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4

Undergrad Photons = Wavelike, Particle-like, or Both?

  • teetar
  • · Replies 16 ·
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16

Undergrad Superposition principle and information

  • Virous
  • · Replies 3 ·
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3

Graduate Why does the reflection coefficient rotate clockwise on a Smith chart with frequency?

  • WhiteHaired
  • · Replies 1 ·
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1

Graduate Neon energy levels in He-Ne laser

  • Anoop MD
  • · Replies 4 ·
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4

Undergrad Why do sunsets appear different colors than the sky?

  • gyroscopeq
  • · Replies 7 ·
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7

Undergrad Rayleigh Scattering: Learn About It Here

  • gianeshwar
  • · Replies 4 ·
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4

Graduate Is speed of thought greater than light?

  • Raghav Gupta
  • · Replies 27 ·
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27

Undergrad Why can light be trapped by black holes if it has no mass?

  • Mr.maniac
  • · Replies 6 ·
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6

High School Virtual image and Virtual Object

  • Omar Nabet
  • · Replies 2 ·
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2

Graduate Can a mallot on Earth wake up a cat on a planet 300,000 km away?

  • Michele
  • · Replies 3 ·
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3

Undergrad Does a Light Pulse Undergo Phase Shift in a Denser Medium?

  • oreo
  • · Replies 2 ·
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2

Undergrad Is the speed of light based on an incorrect assumption?

  • Steven Wallis
  • · Replies 12 ·
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12

Undergrad Why does wood move when charged with the same rod as an aluminium can?

  • mnmman
  • · Replies 3 ·
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3

Graduate Imaging CDs, DVDs or other optical media under SEM

  • Septim
  • · Replies 4 ·
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4

Graduate Scattering of X-rays and polarization

  • Gruxg
  • · Replies 3 ·
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3

Undergrad How Does Angular Resolution Differ from Other Types of Resolution?

  • 21joanna12
  • · Replies 4 ·
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4

High School Laser Beam Diameter: Why Can't Power Be Increased?

  • Krishnakant
  • · Replies 6 ·
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6

Undergrad Type of laser -- which is easiest to make?

  • hiltac
  • · Replies 19 ·
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19

Undergrad Application of advanced spectrometer in geometrical optics?

  • Dorea
  • · Replies 5 ·
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5

Graduate FBG Wavelength Reflection in Double-Clad MMF for 910 nm Laser Diode

  • Gilbert
  • · Replies 1 ·
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1

High School How does a camera autofocus on a mirror reflection?

  • GeorgeV
  • · Replies 4 ·
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4

Graduate Ball lightning research and current theories

  • Gillian McF
  • · Replies 7 ·
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7

Graduate What restricts two separte sources of light to act coherent?

  • Ahsan Khan
  • · Replies 68 ·
3
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68

Undergrad What Causes Optical Density in Media?

  • cvjkctr
  • · Replies 1 ·
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1

Undergrad What Color Light Works Best for Outdoor Data Transmission Over Long Distances?

  • Bern1937
  • · Replies 2 ·
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2

Graduate VECSEL laser tuning (question kindly reply)

  • Sanjay@Laser
  • · Replies 1 ·
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1

Graduate Can high-energy electromagnets or objects bend light paths?

  • Keystone
  • · Replies 2 ·
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2

Undergrad Hand drawn ray tracing through an optical system

  • optotinker
  • · Replies 11 ·
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11

High School Why does light bend on refraction?

  • ajay.05
  • · Replies 11 ·
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11

Undergrad What Does a CCD Pixel Measure?

  • blue_leaf77
  • · Replies 2 ·
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2

High School Tree Trunk Illusion: Does it Disappear Over the Horizon?

  • Ryan Bruch
  • · Replies 5 ·
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5

Graduate Are holograms able to reconstruct wavefronts in all directions?

  • rumborak
  • · Replies 4 ·
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4

Undergrad Particle size and scattering of light

  • gracy
  • · Replies 1 ·
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1

Undergrad Young's double slit experiment vs single slit

  • copernicus1
  • · Replies 13 ·
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13

High School Why does an object absorb some wavelengths and reflect others?

  • oreo
  • · Replies 11 ·
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11

High School Why the sky is blue and not violet?

  • kmm
  • · Replies 34 ·
2
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34

Graduate Can Doppler shift transform X-rays to visible light to image atoms?

  • yunged
  • · Replies 10 ·
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10

Graduate What lenses and setup should I use for a very narrow beam projector?

  • nikosb
  • · Replies 3 ·
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3

Undergrad Parabola incoming ray not parallel to axis

  • zimbabwe
  • · Replies 37 ·
2
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37

Graduate Is the superposition of forces an inevitable mathematical consequence?

  • PFuser1232
  • · Replies 9 ·
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9

Undergrad Compound Microscope Magnification @ Infinity

  • RachaelD95
  • · Replies 5 ·
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5

Graduate Calculating Spectral Power Distribution of White LED

  • kaje
  • · Replies 4 ·
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4

Undergrad Death Ray New Approach - Is It Possible?

  • WannabeWizard
  • · Replies 1 ·
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1

Undergrad Understanding Fraunhofer Diffraction Patterns of Circles and Slots

  • Nick.
  • · Replies 6 ·
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6

High School Difference between black and transparent object

  • gracy
  • · Replies 10 ·
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10

Undergrad Car getting struck by lightning

  • dEdt
  • · Replies 58 ·
2
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58

Undergrad Principle of Least Time Question

  • EternusVia
  • · Replies 3 ·
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3

Undergrad Shouldn't the index of refraction change?

  • mero55
  • · Replies 1 ·
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1

High School Why does or doesn't a rainbow form?

  • gauss44
  • · Replies 3 ·
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3

Graduate Ray optics of a telescope question

  • center o bass
  • · Replies 16 ·
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16

Undergrad Calculating reflection coefficient of walls versus wavelength

  • kaje
  • · Replies 7 ·
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7

Undergrad Diffraction Grating: Does Light Excite Electrons or Pass Through Holes?

  • gyroscopeq
  • · Replies 2 ·
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2

Undergrad Interference of light (perpendicular plains)

  • Pagowen
  • · Replies 3 ·
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3

Undergrad Spoon Optics-Virtual Inverted image with a concave mirror

  • ilzmaster
  • · Replies 29 ·
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29

Undergrad Why do polarizers only work within a certain range?

  • iScience
  • · Replies 1 ·
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1

High School Do we know what radio waves look like?

  • Niaboc67
  • · Replies 17 ·
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17

Graduate Seeing a laser pointer from 16km away

  • Hal
  • · Replies 14 ·
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14

Graduate Why no transparent materials with large refractive index?

  • jfizzix
  • · Replies 4 ·
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4

Undergrad Circular flight path with constant wind and airspeed

  • pr1ncesspeach
  • · Replies 5 ·
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5

High School Plastic or glass that can block one colour/ wavelength?

  • CuriousRupert
  • · Replies 8 ·
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8

Undergrad The Young Double-Slit Experiment

  • PFuser1232
  • · Replies 8 ·
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8

Graduate Plano-convex lens with tilted plane surface focus point

  • AdityaDev
  • · Replies 8 ·
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8

High School Spectrograph to measure the Sun's light

  • Paulene Gueco
  • · Replies 10 ·
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10

Graduate Can a Convex Lens Converge a Tilted Wavefront?

  • AdityaDev
  • · Replies 2 ·
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2

Undergrad Why don't compound microscopes use an erecting lens like terrestrial telescopes?

  • arvindsharma
  • · Replies 2 ·
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2

Undergrad Multiple images in a thick mirror

  • Fiona Rozario
  • · Replies 5 ·
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5

Graduate Is Long-Distance Laser Cooling Feasible?

  • ASGTech
  • · Replies 3 ·
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3

Undergrad Focal length from thin lens to object distance

  • mikey_d
  • · Replies 8 ·
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8