Optics Forum

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Mystery of Reflected Sunlight 73 Miles Away - A Man's Quest
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What is causing the reflected beam's s oscillations at Brewster's angle?
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7
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Does Light Refraction in Water Lead to Ultraviolet Emission at Extreme Depths?
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12
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Virtual image size/distance in an OAP mirror
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4
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What happens to intensity during light interference?
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1
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Does light contain kinetic energy?
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10
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Does Scattering Involve Absorption
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LightSpeed & Time: What's the Relationship?
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17
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Why is light acting wavelike ?
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4
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Why does light move slower in a more dense medium?
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16
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Why subsidary maximum has lower intensity physically in single-slit diffraction?
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3
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Can the Doppler Effect Cause Changes in Radio Wave Frequency?
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4
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A distance-based formula Rayleigh-scattered light....
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2
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Why heavy cars take more time than lighter cars to stop?
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34
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Why is there a wavelength dependence in diffraction?
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5
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Nonreflective Coating and Emission Relation?
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2
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Conservation of energy in refraction
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7
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How exactly are X-Rays produced?
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6
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Light Through Vacuum? Exploring the Possibility
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5
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Invisibility cloaking using 4 lenses
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8
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Laser Pointer Troubleshooting: Solving Incoherence in a Red 650nm <5mW Beam
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2
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1N Force and going near the speed of light?
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30
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4K
Question about suborbital flight and ballistic missiles
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9
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For the Fresnel Equations for TM light why is 1 + r not t?
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7
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Ti:sapphire: laser propagation
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3
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Image formation in concave mirror
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18
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How many state changes per second could optical computing do
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31
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3K
Number of photons in a given space
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6
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Wave Behavior of Light: Exploring Physical Context
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14
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Explaining Light intensity with EM Field Oscillations?
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7
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Correcting results to fit Rutherford's Scattering Formula
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7
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Time Travel and the Speed of Light: Separating Fact from Fiction
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4
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Optical Phenomena: Key Elements & Assumptions
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6
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How does a gamma ray get converted to visible light
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1
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Physics: Are Photons Considered Objects?
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23
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Order of magnitude calculation
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1
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Question about light emissions of fluorescent bulbs
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3
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Out of phase light/photons, would it be measurable?
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3
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1K
Purpose of knife-edge in Schlieren (optics)
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3
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Will this travel faster than light
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16
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Interference pattern from a plano-concave lens
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1
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Christmas lights: Why in series?
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1
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Difference between elastic and coherent scattering
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6
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About interference, momentum and thrust....
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31
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Microwave oven is prevents mobile signal?
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4
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Uncovering the Truth: Recording Lightspeed with a Trillion FPS Camera
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23
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3K
Question about frequency of light
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4
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1K
Is it possible to collimate monochromatic light with a taper?
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14
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Monochromatic RGB light sources passing through a prism
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2
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Do all light waves move at the same speed?
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12
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3K
Synchronous Sources and Interference
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7
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Can a Box Block UVC Light for Bacteria-Killing Experiment?
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1
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Diffraction experience at home
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13
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Trying to buy some simple glass double-convex lenses
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4
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2K
Making a bolt of lightning travel in a straight direction?
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8
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3K
Combing Lasers To Create One Mega Laser
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10
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What determines the wavelength of light an object reflects?
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20
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Small Reflective Projector LCD
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11
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Light intensity independant of frequency and E = hf
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10
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Question about x-ray, concept confusion
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1
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1K
Is the Speed of Light Truly Constant?
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9
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Is laser light polarised? In which direction?
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7
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Use of prisms vs use of mirrors in periscope
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2
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What is known about helical flight paths in bullets?
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11
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3K
Time of flight objects in air versus in vacuum
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14
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Thin film refractive index determination
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2
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Using Gamma Ray reflector to reduce mass of Shadow shield
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2
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Is light ACTUALLY a sinsusoidal wave?
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7
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What medium does light move in?
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26
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Looking for proof of Superpositional Energy Conservation
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34
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Fermat & Snell: Solving the Derivation Mystery
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2
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Mysteries of the Lightning Rod Underground
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12
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Bragg Diffraction: Calculate 1st & 2nd Order Angles
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2
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What is the polarization energy?
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1
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Two Diffraction Gratings - Rotation
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1
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Can a wave of light activate a force on a physical object?
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1
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967
Where can i buy an ordinary optical collimator
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4
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Does a lightning rod also avoid lightning?
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17
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Superimposing 2 sources of light slightly out of phase
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4
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Can anyone explain this sun reflection in terms of angles?
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3
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Light Speed Q&A: Can Cameras Capture Light?
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1
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Why doesn't the frequency change after refraction?
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11
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Mirror image inversion in the 4th dimension.
2
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What is the refraction of light and its relevance in Bsc physics?
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1
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How do the units of polarizability differ between SI and Gaussian systems?
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3
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Bragg's Law with Refractive Correction
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1
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Imaging by cylindrical concave mirror
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18
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Is it possible to magnify with a focal length of zero?
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7
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X-rays produced by Solar Flares/CMEs
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1
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Can light generate propulsion?
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9
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Strange results with transfer matrix (Optics)
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1
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Basic question about Scattering and understanding colors
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12
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Intuition for Rayleigh Scattering
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3
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1 light year of mirror reflections?
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3
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Derivation of Reflection and Transmission coefficients of wave
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1
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Polarisation of Light: Reflection, Critical Angle & Total Internal Reflection
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8
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How to focus and direct microwaves?
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2
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3K
How Do Polar Coordinates Explain a Bead's Velocity on a Rotating Wheel?
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2
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2K
Can Low Energy Photons Cause Box Explosions?
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2
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1K
Optics - Re-aligning P Polarization with Brewster Windows
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1
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1K

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