Optics Forum

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Graduate Feynman's Missing Equation in his Lectures(Optics)
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High School Compound Microscope: Focal Length of Objective Lens vs Eye Piece
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High School Infinite Plane Telescope's View of Faraway Person
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Graduate Can a microwave carry more energy than a gamma-ray wave?
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Undergrad Calculating Uncertainty for Focal Length: 50mm + 3mm & 200mm + 5mm
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Graduate How Do Microwaves Create Plasma by Separating Atoms into Ions and Electrons?
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Graduate Light through a tube - Solid Angle (Oblique Cone)
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Undergrad (i,j) notation of orders of wave vector
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Graduate Which theory explains behavior of photon?
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High School What is the longest wave-lenght of a photon?
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Undergrad Understanding the Doppler Effect: Differences Between Sound and Light
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Graduate Frequency Components of a Lightning Strike
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High School Is it possible to reflect light off of air?
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High School Question about camera lens taking a picture
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Undergrad Question about Holograms and 3D mid air images, videos, etc.
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High School Do ferrous metals become polarized when attached to mag?
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Undergrad Why Does a Wave Reflect at a Free End with Unchanged Polarity?
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Graduate Polarization change upon Reflection
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Undergrad The Physics Behind Fluorescent Lamps
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Graduate What Determines the Zig Zag Pattern of Lightning?
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Graduate Emission spectrum changes with microscope objective?
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Undergrad Closed loop problem for lighting in thunderstorm?
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Undergrad Anamorphic and Spherical Lens Focusing
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Undergrad What is a Dichromatic Prism and How Does it Work?
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High School What does seeing an object really mean?
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Undergrad Can I Create a Visible Light Pattern Using a Combination of Laser Beam and LED?
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High School Is the Mass of Light Constant?
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Undergrad Absorption and emission of light
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Graduate How quickly do changes in fundamental forces propagate?
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Graduate What is the difference between zero and multiple quarter wave plates?
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Graduate Do Particles at LHC Travel Near Light Speed?
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Undergrad Light Waves & Wave Inversion: Understand the Phenomenon
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High School Why is Glass Transparent? The Science Behind Its Clarity
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Undergrad What is saturation in terms of wavelength?
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Undergrad How does a light wave change when travelling from water to air?
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Graduate Which theory or field can explain this?
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Graduate Parallel light rays through a sprial wave plate diverge?
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High School Relation Between Computers, Light and Pi
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Undergrad Single slit diffraction confusion
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Undergrad UVA/UVB Light: Why does UVA penetrate deeper into the skin?
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Graduate Relativity: Massless particles and photons
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Graduate Where Can I Find Diodes for Line-Shaped Beams in Soft X-Ray Experiments?
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Graduate Why does the photon have no mass?
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Undergrad Where Can I Find Free Software for Caustics/Cusps?
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Graduate Angular Spectrum Method and Fourier Transform
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Undergrad What is the name of this equation? Seems to be from Optics
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High School Laser Polarization: Learn Why Polarizers are Used
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Undergrad Speed of Light Limit: Factors & Vacuum Conditions
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Graduate Arbitrarily changing EM fields and their photons
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Graduate Understanding the Impact of Photon Emissions on the Sun's Gravity
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Undergrad How do you explain this? (Optics)
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Graduate What is an optical straight line (photon path)?
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Undergrad About polarization and polarizer
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Graduate Is a Photon Really Its Own Antiparticle?
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Graduate Does light curve toward ordered
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Undergrad Do Photons Have Mass? Physics Forums FAQ
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High School Would you see the stars in the day if blue were filtered?
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Graduate Sonoluminescence using microwaves?
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Undergrad Optics problem --- absorbtion index
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Graduate Speed of light depending on gravitational constant?
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Graduate Is there a good classical description of a photon?
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High School Why is visible light not harmful?
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Graduate Derive parameters from transform matrix
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Undergrad Understanding How Camera Detectors Work - CCD vs. CMOS Sensors
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Graduate Fresnel Relations and the Sensitivity of a Camera
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High School Which causes an object to become invisible, regular or diffused?
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Graduate Is Light a Particle or a Wave According to Planck's Theory?
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Graduate Aperture stop for an optical system
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Undergrad Photons striking a camera sensor?
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High School Photon Standing Wave Phenomenon
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Undergrad Calculating Critical Angle: Relative vs. Absolute Refractive Index
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Undergrad Simplest lens set up to reveal optical spectra of an object
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Graduate A question about discreteness of light
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Graduate Fabry Perot Free Spectral Range
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Graduate Photons and transparency....who's right?
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Graduate Is there a medium in which sound travels faster than light?
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High School Why do different objects have different colors?
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Graduate How do two light beams combine at a shear angle?
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Graduate Does light bend due to gravitational tides?
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Undergrad How do speed laser guns differentiate between two cars?
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High School What caused the Quadruple Rainbow?
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High School Is comunication faster that light possible: yes( maybe )
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Undergrad Speed of sound and light through different solutions
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Undergrad Mass of Photon: Einstein's Energy-Mass Equivalence
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Graduate Dichroic mirrors that reflect two wavelengths
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Graduate Would synthesis of Acetylcholine make photons?
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High School I have a quick question about Photons
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Graduate Conservation of momentum in compton scattering
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Graduate Precession of an air rifle pellet in flight
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Undergrad An Observation And A Question -- Why does metal arc in a microwave oven?
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Graduate Is Light exclusively an ionization process?
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Graduate What happens when monochromatic light travels for eternity?
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Graduate Gravitational Force and Light: Is There a Connection?
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Undergrad Reflection of Electromagnetic Radiation in Dense Materials
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Graduate Group, phase and signal velocity of light
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Undergrad Can a photon of light become a radio wave?
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Graduate Do virtual photons explain this phenomenon?
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Graduate Computer Simulation of Fresnel Diffraction
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High School Why does light slow down in a medium?
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Undergrad Two hologram halves brought together
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