Optics Forum

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Undergrad Photons have energy but zero mass?
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Graduate Laser Illuminocity changes with cavity length
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Undergrad Polarizing Filters: Explaining the 45 Degrees Effect
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Undergrad What's Wrong with Refractive Index Query? | Wikipedia
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Undergrad Light always travels the fastest path right?
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Undergrad Does perpendicular incident light slow down through glass?
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Graduate From FAQ: IS LIGHT A WAVE OR A PARTICLE?
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Graduate Relation between diffraction and wavelength
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Graduate Do Square Waveforms Enhance Image Resolution in Electromagnetic Imaging?
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Graduate Does Radio Wave Efficiency Improve During Nighttime Tropospheric Enhancement?
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Undergrad How Small Can Mirrors Reflect in Recursive Reflection?
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High School Making hologram without optical table ?
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Graduate Max Magnification of a Object: Does Size Matter?
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Undergrad What causes the streamers of light when squinting at a light source?
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Graduate Why is Direct Detection of Doppler Frequency Shift Impractical in Laser Doppler Anemometry?
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High School Speed for lightning and thunder
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High School What is the object distance for a concave mirror?
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Undergrad The Doppler Effect: How Source & Listener Motion Affect Wavelength
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Undergrad Particles smaller than the wavelength of light
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Undergrad Wave Frequency Change: Why Does Velocity Not Increase?
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Can I do this in my microwave?
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Undergrad Scatter vs Diffusion: What’s the Difference?
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High School Why do my eyelashes look enormous
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High School I need a very unusual UV filter (no, not what you're thinking)
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High School Shake Up Flashlights - Impressive Induced Current from Motion
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High School What Causes the Illusion of Wheels Spinning Backwards?
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High School Why does my laser pointer create a weird effect when shined at a ceiling fan?
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Graduate [optics] reflection and refraction
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High School You have a light bulb in the middle of a room and .
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Graduate Radio Wave Absorption: Formula & Pressure/Temp Dependence
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Undergrad Ball lightning produced in lab?
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Graduate Make photons into some material?
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Graduate The early perception of light ?
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Undergrad Increase N in Optical Fiber: Effects on Speed of Light
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Graduate What's the Difference Between Light and Magnetic Fields?
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High School Why Iron Glows: Light, Heat & Electrons
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Graduate What Are the Secrets Behind Light's Velocity and Its Physics?
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Where Can I Find Information About Lasers?
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High School Why do Military Installations Use Red Lighting?
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High School Why is View Through Glass Window Not Dimmed?
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Undergrad Sound pressure level magnitude question.
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High School Understanding Ultraviolet Light: The Blurry Edges Mystery Explained
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Graduate Light bending around neutron and bound photon
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High School Does light have weight and mass?
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Graduate Ultimate Guide to Mastering Ultrafast Laser Spectroscopy in Just 3 Months
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Graduate Optics: building a camera with quasi-hemispherical recording surface, what lens?
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Graduate Is a Radio Laser Possible Through Non-Linear Frequency Mixing?
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Richard Feynman Lectures on Light
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Undergrad Problem related to engery of light
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Graduate Irrelevant to ask if speed of light changes?
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Undergrad Understand what is polarization and why do we need it?
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Graduate How to calculate achievable flashlight beam divergence
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Undergrad Speed of Light: Does It Change in Different Materials?
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Undergrad Difference between two polarization directions
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Graduate What happens when you go faster then speed light
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High School Where Does Light Go When We Turn Off the Switch?
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Graduate Do Photons Have Mass When Moving Close to the Speed of Light?
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Undergrad What are the properties and behavior of photons?
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Graduate Long Wave Photons: Evidence for Low Energy Light Waves?
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High School Sunrise and Sunset - Is there a difference?
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Graduate Interactions of Photons with Matter
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Graduate Doppler Effect in Accelerating Frames vs Normal Doppler Effect
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Undergrad Would Homopolar Generators Work with Magnet as Disc?
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Graduate If speed of light is constant, how does prismatic color shift occur?
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High School How to make a hologram by myself ?
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Graduate Is the Diffraction Pattern from Slits Influenced by Topmost Atomic Layers?
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Graduate Emission or Absorption of a Photon - Dipole Needed?
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High School Is Light a Particle or a Wave?
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Physics and Lasers: Do You Own One?
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High School Will My Hologram Be Fully 3-Dimensional?
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Graduate X-ray fluorescent screens and film contrast
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Undergrad Fermat's principle light and time
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Graduate X-Ray lines from inner shell ionisation
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High School Why Does Light Have Different Energy Levels? Explained
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High School How light produce? and why we can see it?
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Graduate Solving James' Confusion: Abbe Theory, Spatial Filtering & Optical Computers
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Undergrad Hyperbolic Lenses: Abberation-Free?
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Graduate Optical Lens Selection for 612nm Laser Source
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Overcoming Lightning: Price Issue or Something Else?
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Undergrad Changing the direction of light
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High School Diffraction diffusion effusion differences
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Undergrad Fresnel Diffraction: Explaining Zero Intensity at Center
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Undergrad Single Slit Diffraction Patterns: When & Why?
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Undergrad Physical parameters define colors like the pigment primaries
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High School See a Complete Circle Rainbow: Causes & Conditions
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Undergrad Spherical glass object with index of refraction N
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High School What Are Normal and Anomalous Dispersion?
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High School Light's reflection - wats ur perception?
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High School Focusing Monochromatic Light: Why Do We Need a Distant Object?
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Undergrad Exsistance before the speed of light hits- question for you.
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Undergrad Can Sound Actually be Faster Than Light?
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High School When bulb light passes through a prism
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Undergrad What is the loss percentage of standard glass mirrors in multiple reflections?
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High School Red & White: Seeing the Wall Differently
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High School Possible for a torch to light up a wall
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High School Do Photons Have Mass? Explained for the Noob
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Undergrad Thin Film Interference | Observing Puddles of Oil on Pavement
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High School Is there a difference in speed between blue light and yellow light in air?
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Undergrad Can impurities or density in glass affect the speed of light?
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Graduate Can Light Be Slowed? IBM Readies Silicon Chip
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