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High School Autofocus which subject does it focus on?

  • fisico30
  • · Replies 2 ·
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Undergrad Move or attract large/heavy materials using polarisation

  • Moustachio
  • · Replies 1 ·
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1

High School Can a Lightning Strike Kill Someone Flying in the Sky?

  • Jared409
  • · Replies 11 ·
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11

Undergrad Refraction and splitting of a photon

  • karen_lorr
  • · Replies 5 ·
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5

Graduate Specular reflection from moving mirrors

  • erielb
  • · Replies 3 ·
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3

Undergrad Why does squinting improve focus for both myopic and hyperopic eyes?

  • swampwiz
  • · Replies 4 ·
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4

Undergrad Crest and Trough Interference - Light Wave Explanation

  • HUMERA.S
  • · Replies 1 ·
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1

Graduate Building infinity corrected microscope from non-infinity corrected objective

  • anandr
  • · Replies 3 ·
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3

Graduate Is polarity universal in all forces except gravity?

  • PeterLouis
  • · Replies 2 ·
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2

High School Does Combining Lumens Make a Difference?

  • mattloto
  • · Replies 3 ·
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3

High School What are 10 effects of light?

  • Patrick123456
  • · Replies 6 ·
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6

Undergrad Speed of Lasers: 300x Faster Than Light? Plus, What Happens in Space?

  • d3aj1986
  • · Replies 4 ·
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4

High School Why do objects appear the same color under different light sources?

  • Deadevil
  • · Replies 1 ·
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1

Undergrad Calculation of light on a surface

  • ajpapia
  • · Replies 7 ·
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7

Graduate The inverse square law for point light sources inside an opaque medium

  • mgamito
  • · Replies 5 ·
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5

Graduate Nonstandard Concave Mirror Optics, beyond the parabola.

  • xlearsi31
  • · Replies 2 ·
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2

Undergrad What is the formula for sound refraction?

  • WarVsFutility
  • · Replies 25 ·
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25

Undergrad Convex mirror diameter and curvature to cover wall from 50 feet away

  • webmonk
  • · Replies 1 ·
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1

Undergrad Designing Refraction Lab to Prove Critical Angle Equation

  • kf00zy
  • · Replies 2 ·
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2

Undergrad Is there a limit to how much energy a single photon can carry?

  • BobiG
  • · Replies 10 ·
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10

Graduate Light when going as fast as the speed of light

  • d3aj1986
  • · Replies 2 ·
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2

High School Tranform photon to other energy

  • kevinsetiono
  • · Replies 11 ·
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11

Graduate Is it possible to make one particle have a velocity same with speed of light

  • kevinsetiono
  • · Replies 1 ·
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1

High School Is the value of c ( speed of light ) is constant ?

  • kevinsetiono
  • · Replies 11 ·
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11

Graduate Negative refractive index in one direction of uniaxial crystal

  • VortexLattice
  • · Replies 7 ·
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7

Graduate Spherical near to far field transformation

  • Readro
  • · Replies 1 ·
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1

High School Can I see sea-level sunset if something lower than me is blocking my sight?

  • dalcde
  • · Replies 4 ·
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4

High School Why do infrared laser tag guns work well in sunlight?

  • Brainguy
  • · Replies 5 ·
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5

Graduate How can molecules slow down light wave?

  • Jano L.
  • · Replies 7 ·
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7

Graduate Doppler Shift and photons with a wavelength of one Plank length

  • l3un1t
  • · Replies 1 ·
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1

Undergrad Can Atmospheric Composition Change Prism Effects?

  • hxtasy
  • · Replies 2 ·
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2

Undergrad Conservation of momentum and laser powered solar sail

  • nemesiswes
  • · Replies 35 ·
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Undergrad Will a torch light recoil when light is emitted.?

  • aditya23456
  • · Replies 1 ·
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1

Graduate Can Laser Intensity Stabilization Be Improved for Precise Measurements?

  • ssmoke
  • · Replies 4 ·
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4

Undergrad Combining Identical LEDs: Power Increase or Not?

  • Learned
  • · Replies 5 ·
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5

Graduate Reflection of EM plane wave from a moving conductor

  • sunjin09
  • · Replies 2 ·
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2

Graduate Measuring intensity of superposed waves using complex amplitudes

  • McLaren Rulez
  • · Replies 4 ·
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4

Graduate Can Light be Cut?And if so then what would it take.

  • promeus
  • · Replies 6 ·
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6

Undergrad Cathode ray create interference pattern?

  • danphan323
  • · Replies 2 ·
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Graduate Collecting energy from a hot diffuse source

  • edge540t
  • · Replies 2 ·
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2

Undergrad Can these two things disperse photons?What can disperse photons?

  • promeus
  • · Replies 2 ·
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Undergrad Is Snell's Law valid even when incident ray is Normal to the surface?

  • aleemudasir
  • · Replies 3 ·
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3

High School Why do some parts of the sky appear more yellow during sunrises and sunsets?

  • Lifed
  • · Replies 9 ·
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9

High School Why does light applied to one side illuminate an entire acrylic keychain?

  • samak
  • · Replies 2 ·
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2

High School How Are Diameter, Aperture, and Focal Length of Lenses Related?

  • moatasim23
  • · Replies 2 ·
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2

High School Why does condensation on a glass window make it opaque?

  • dipole
  • · Replies 1 ·
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1

High School Physics Theories of Stage Lighting?

  • leonhartdan
  • · Replies 2 ·
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2

High School How far can a 1300nm wave travel in 100ns?

  • Evil Bunny
  • · Replies 8 ·
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8

Graduate Temporal and spatial coherence of EM radiation

  • deccard
  • · Replies 15 ·
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15

The Green Lights of Guatemala seen from Space

  • Kabbotta
  • · Replies 5 ·
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5

Graduate Is light affected by gravity or following curved spacetime?

  • Vierstein
  • · Replies 2 ·
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2

Undergrad What is the relationship between physical density and optical density?

  • Misr
  • · Replies 16 ·
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16

Undergrad Polarization of light and sunglasses

  • ZxcvbnM2000
  • · Replies 2 ·
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2

Undergrad Lightning strike->positive streamers

  • adlfurball
  • · Replies 3 ·
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3

Graduate RELATIVE Space/Time and Lightspeed question

  • Riptide
  • · Replies 1 ·
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Graduate Reflection coefficient in lossy vs lossless media

  • jmckennon
  • · Replies 2 ·
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2

Undergrad Why Can't There Be a Critical Angle When nB/nA Is Greater Than 1?

  • ZxcvbnM2000
  • · Replies 1 ·
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Graduate Group refraction index, group velocity

  • carlos-carlos
  • · Replies 3 ·
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3

Graduate What is unpolarized monochromatic light?

  • center o bass
  • · Replies 5 ·
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5

Patternship of power plant based on lightnig

  • sivarama
  • · Replies 7 ·
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7

High School Can a concave lens produce multiple sharp images at different object distances?

  • nfsmwbe
  • · Replies 7 ·
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7

Undergrad What causes light to speed up after passing through something

  • Janesh
  • · Replies 18 ·
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18

Graduate How to predict the shape of the circle from any point of view

  • OFF_Smog
  • · Replies 2 ·
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2

Undergrad Questions on light and gravity

  • AustinJones
  • · Replies 8 ·
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8

Undergrad Can refractive index of a substance be increased?

  • aditya23456
  • · Replies 1 ·
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1

Undergrad Amplitude reflection at both surfaces of a glass pane

  • Eruditio
  • · Replies 1 ·
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1

Graduate Young's slits interference with sunlight in pinhole camera

  • David2001
  • · Replies 3 ·
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3

Graduate How Is the Original Energy of CMBR Photons Affected by Universal Expansion?

  • jnorman
  • · Replies 9 ·
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9

High School Thin-lens equation gives infinite image distance when object is at focal point

  • jayadds
  • · Replies 2 ·
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2

Graduate Intensity and the Double Slit Experiment.

  • Sefrez
  • · Replies 2 ·
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2

Undergrad Why does higher frequency light have a higher index of refraction?

  • reshmaji
  • · Replies 1 ·
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1

Undergrad Highest order maximum for 560 nm light on 4000 lines/cm grating

  • tnbstudent
  • · Replies 2 ·
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2

Graduate Why study coherent light transport in cold atomic vapor

  • pbody
  • · Replies 4 ·
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4

Undergrad What causes the Gouy phase shift in focused beams?

  • vivek91m
  • · Replies 2 ·
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2

High School Projecting an Image in a Dark Room - Optics Question

  • SIP
  • · Replies 2 ·
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2

Graduate How does an x-ray photon interact with ice?

  • smartkb
  • · Replies 1 ·
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1

High School Measuring coefficient of friction of very light item

  • pyroknife
  • · Replies 5 ·
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5

Graduate How do reflected and incident pressures combine in Mach reflection?

  • lasfoe
  • · Replies 1 ·
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1

Graduate Does mu-metal shield reflect magnetic fields like a mirror?

  • Niles
  • · Replies 2 ·
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2

High School What does power have to do with light bulbs?

  • accelerate23
  • · Replies 5 ·
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5

Graduate Pinhole camera optimal resolution?

  • Artlav
  • · Replies 2 ·
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2

Graduate How do mechanical processes depend from the speed of light?

  • Aidyan
  • · Replies 16 ·
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16

High School How will rain affect a discs flight?

  • mhammy
  • · Replies 7 ·
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7

Undergrad Laser Microphone: Understanding Physics Behind Its Working

  • DBB
  • · Replies 2 ·
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2

Undergrad Why does reflection cause polarization of light?

  • maxbur
  • · Replies 2 ·
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2

Graduate Refraction in a medium with a gradient of refractive index

  • Gobil
  • · Replies 25 ·
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25

High School Does light reflect from point 4 to point 2 to point 8 inside a circle?

  • rushvan
  • · Replies 2 ·
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2

Undergrad Light is only a photon - no wave by feynamn?

  • jd12345
  • · Replies 4 ·
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4

Graduate Determining phase of resultant from partial interference of waves

  • franco1991
  • · Replies 14 ·
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14

Graduate 3D spherical vs 2D radial waves

  • jjustinn
  • · Replies 3 ·
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3

Undergrad Ellipse and Kepler's Law in Polar Coordinates

  • Septim
  • · Replies 3 ·
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3

Undergrad Locus of light falling on a plane surface

  • hale2bopp
  • · Replies 3 ·
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3

Graduate What is the hottest you can make a focused beam of sunlight?

  • kmarinas86
  • · Replies 42 ·
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Graduate How can we determine phase information using Window Fourier Transform?

  • hamidlukhnowi
  • · Replies 8 ·
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8

Undergrad Amplitude and energy relation in optics

  • amir11
  • · Replies 1 ·
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1

High School Why do people survive lightning strikes when trees are destroyed?

  • jetwaterluffy
  • · Replies 3 ·
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3

Graduate The Hadron collider shooting particles at JUST under speed of light.

  • Django-17
  • · Replies 2 ·
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Undergrad Optics: Determining focal length for collimated beam

  • pierce023
  • · Replies 3 ·
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3

High School What's the difference between linear magnification and magnification ?

  • Jadaav
  • · Replies 4 ·
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4

Graduate Understanding the Momentum of Light in Space

  • azabak
  • · Replies 3 ·
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3