Optics Forum

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Graduate What is the relationship between photon energy and momentum?
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Undergrad Total internal reflection with Sound?
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Graduate Understanding Nuclear Fusion and the Role of Photons in Energy Production
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Undergrad Can light waves be represented as long skinny rays in computer programming?
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High School Artist needing some assistance with a project utilizing mirror reflections
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Undergrad How can I accurately measure the diameter of a hole using digital photography?
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Graduate How to Accurately Measure Backscattered Beta Particles?
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Undergrad Does Carrying a Cellphone on a Waist Belt Reduce Microwave Radiation to the Brain?
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Graduate How Does Image Formation at Infinity Work with Converging Lenses?
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Undergrad How Do Refraction and Reflection Differ in Optics and Sound Waves?
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Undergrad Why does light travel at varying speeds through different materials?
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Undergrad How to Interpret L, x, y in Color Transmittance Reports?
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High School Magnification in a Convex Lens: + or -?
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Undergrad Ballistic and Bullet Flight Path Calculation
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Graduate CasebyCase: Halfing the amplitude of light
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Graduate Polarization in Interferometry
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Graduate How Do Photon-Atom Interactions Affect Light's Direction in Dense Materials?
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Undergrad What is the relation between refractive index and wavelength in a prism?
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High School What is Magnitude in Physics?
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Graduate What is the ideal refractive index difference for achieving invisibility?
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Undergrad How does black absorb all the wavelengths?
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Graduate Do Excited Molecules Emit the Same Frequency They Absorb?
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Undergrad Confused about my frisbee (flight dynamics)
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Undergrad Thin Film Interference: Finding m Value
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Graduate Optics (Parallax and Luminosity)
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High School Question about light and sound.
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Undergrad Calculating Bouncing Velocity from Tangent Angle in 2D Collision
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Graduate Speed of Wire faster than Speed of Light?
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Undergrad Index of Refraction & Frequency: Clarifying the Relationship
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Undergrad How Does Lens Power Correction Work for Nearsightedness?
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Graduate Speed of light in a superconductor
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Undergrad Relative Permittivity and Refractive Index
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Undergrad Is It Possible to Exceed the Speed of Light?
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Undergrad Achieving Light Speed in Darkness
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Undergrad Speed of a photon go to zero when it reflects of a mirror
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Graduate What Are Direction Cosines in Light Scattering Theory?
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High School Question: Why Does Compressed Air Cause Refraction?
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Undergrad Dragon flight and whether it would be possible
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Physics Experiment Equipment Resource?
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High School Experiments that revealed light's nature.
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Undergrad Does the Speed of Light Change depending on different Light Frequencies?
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High School Lightning in Sky: Why Don't I Hear Anything?
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Graduate Question regarding thin film interference
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High School How is physics involved in the application of cameras?
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Undergrad What is the relationship between F-number and light intensity in camera lenses?
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Undergrad Why Do Letters Appear Reversed in Mirrors but Words Don't?
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How i can build a cheap and big Laser ?
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Microwaves and Weird Neighbors
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High School What is the Difference Between a Microwave Cavity and Chamber?
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High School Mirror Reflection: Seeing Double?
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High School Why Does Reflected Light Get Polarized But Transmitted Light Does Not?
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Undergrad What is the Solution for Improving Cue Delivery in Billiards?
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Graduate Estimate the power of the laser on board of Darth Vader's Death Star
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Undergrad The Science Behind Light: Electrons, Antennas, and EM Radiation Explained
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High School Constructive Interference: Height Difference Matter?
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Undergrad Surprising lightning observation
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Graduate Can a single audio channel produce a 38000 Hz signal for IR transmission?
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High School Slight confusion about centripetal acceleration
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Undergrad Destructive Intereference Question
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Undergrad Absorption and reflectance spectrums
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Undergrad How to detect the TE mode and TM mode?
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Undergrad Fermat's principle and Snell's law
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Undergrad Two coherent beams crossing each other's path; what will be the effect?
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Graduate Pondering: Creating an Electric & Magnetic Field, to See Color?
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High School How Can a Camera Be Made to Show Darkness Instead of Light?
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Undergrad Wave Equation in Space with Angle "p
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Undergrad How does the air polarise the light?
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Undergrad Combining Laser Beams: Calculating the Optimal Wavelength | Expert Tips
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Graduate Why does gas emit light, when light is shone on it?
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Undergrad Consider a ray at the interface air and glass
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Graduate Is it possible to make a gamma-ray laser?
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Undergrad Find the focal length of a concave lens using a convex lens?
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Graduate Spherical wave in far field is a plane wave ?
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Undergrad Question about Huygen's principle
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Undergrad Any good guides/tutorials for laser use?
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High School Carbon footprint Turn your lights off - Does it really make a difference?
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Undergrad Optical problem that eludes me
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Undergrad Understanding Wave Refraction in Denser Media
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Undergrad Interference in thin films: why thin?
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Graduate Single slit diffraction / wave propagation
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High School Explaining the Optical Illusion on a Spoon
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Graduate Can a photon travel forever without interacting with matter?
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Graduate Can Modulating Light Unlock the Secrets of Atomic Visibility?
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Graduate What is the true nature of a photon?
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Graduate Deriving Velocity in Polar Coordinates
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High School Building a Telescope for Physics Class: Choosing Lenses & Mirrors
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Graduate What Is Zernike Mixing in Optical Materials?
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Graduate Interference pattern from a streetlight ?
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Graduate Problem with understanding polarization
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High School Vibration Free Table for Holograms
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High School Why light from sun takes 8 minutes ?
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Graduate Could gravity be the key to teleportation and understanding black holes?
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Undergrad Question about physics of light / light travel
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Graduate Why do we say photons travel ?
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Undergrad Photon vs Energy: What's the Difference?
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Graduate Boosting Light Energy: Increasing Amplitude Without Changing Frequency
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High School The Mystery of Red & Green Light Combinations
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Graduate How Can I Increase the Intensity of Light from a Fiber Optic for CCD Imaging?
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Graduate Validity of a Formula for Superposition of Coherent Sound Waves
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High School Help with the physics of optical illusions
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