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Undergrad Why is there a wavelength dependence in diffraction?

  • Glenn G
  • · Replies 5 ·
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5

Graduate Nonreflective Coating and Emission Relation?

  • taco01
  • · Replies 2 ·
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2

Undergrad Why is the resolution of TEMs and SEMs not smaller?

  • ccrook
  • · Replies 2 ·
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2

Graduate Conservation of energy in refraction

  • Jigglypuff
  • · Replies 7 ·
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7

Undergrad How exactly are X-Rays produced?

  • Arup Biswas
  • · Replies 6 ·
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6

Undergrad Can Light Travel Through Vacuum and Be Detected Off Its Path?

  • john101
  • · Replies 5 ·
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5

Undergrad Invisibility cloaking using 4 lenses

  • heavystray
  • · Replies 8 ·
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8

Undergrad Why does my 650nm laser pointer make a 1 meter spot at 300 meters?

  • AdrianMachin
  • · Replies 2 ·
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2

Undergrad 1N Force and going near the speed of light?

  • Arman777
  • · Replies 30 ·
2
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30

Undergrad Does a ballistic missile speed up or slow down during descent after apogee?

  • Armed Update
  • · Replies 9 ·
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9

Undergrad How do initial conditions affect the symmetry of wave equations?

  • Nikhil Rajagopalan
  • · Replies 7 ·
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7

Graduate For the Fresnel Equations for TM light why is 1 + r not t?

  • Latempe
  • · Replies 7 ·
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7

Graduate Ti:sapphire: laser propagation

  • frerk
  • · Replies 3 ·
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3

High School Image formation in concave mirror

  • Puneeth423
  • · Replies 18 ·
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18

Graduate How many state changes per second could optical computing do

  • IsItSo
  • · Replies 31 ·
2
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31

Undergrad Number of photons in a given space

  • Bradfordly1
  • · Replies 6 ·
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6

Graduate What Do Peaks and Troughs in Light Waves Physically Represent?

  • sanman
  • · Replies 14 ·
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14

Graduate What causes increased intensity in EM waves if energy only increases frequency?

  • JohnnyGui
  • · Replies 7 ·
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7

Undergrad Correcting results to fit Rutherford's Scattering Formula

  • Fabris
  • · Replies 7 ·
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7

Graduate Time Travel and the Speed of Light: Separating Fact from Fiction

  • andrei3000
  • · Replies 4 ·
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4

Undergrad Instrument Line Function of a Spectrometer

  • Mzzed
  • · Replies 13 ·
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13

Undergrad What are the key elements and assumptions of optical phenomena?

  • Catch22meifucan
  • · Replies 6 ·
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6

High School Why does light intensity decrease in absorbing media?

  • Clara Chung
  • · Replies 2 ·
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2

Undergrad How does a gamma ray get converted to visible light

  • Clara Chung
  • · Replies 1 ·
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1

Graduate Why do stronger red lasers not work in a Crookes radiometer?

  • Simon Bridge
  • · Replies 26 ·
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26

Undergrad Is the Indicatrix a Volume Chart or an Ellipsoid for Crystal Optical Properties?

  • nomadreid
  • · Replies 6 ·
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6

High School Are photons considered objects?

  • Bradfordly1
  • · Replies 23 ·
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23

Undergrad Steam punk, Field of view including the eye

  • George Albercook
  • · Replies 4 ·
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4

High School Which Rays to Consider for Image Formation via Concave and Convex Lenses?

  • PrakashPrasad
  • · Replies 4 ·
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4

High School Order of magnitude calculation

  • Nikhil faraday
  • · Replies 1 ·
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1

High School Why do dying fluorescent bulbs glow pink?

  • Pedraam
  • · Replies 3 ·
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3

Graduate Out of phase light/photons, would it be measurable?

  • rolls
  • · Replies 3 ·
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3

Undergrad Two sheets of glass stick together. Why?

  • RubinLicht
  • · Replies 22 ·
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22

Graduate What exactly is the detector of an ellipsometer measuring?

  • Gabriel Maia
  • · Replies 3 ·
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3

Undergrad What caused a rainbow near the setting sun?

  • Buzz Bloom
  • · Replies 7 ·
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7

Undergrad Purpose of knife-edge in Schlieren (optics)

  • Replusz
  • · Replies 3 ·
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3

Undergrad Will this travel faster than light

  • pinochet
  • · Replies 16 ·
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16

Undergrad Interference pattern from a plano-concave lens

  • Joans
  • · Replies 1 ·
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1

High School Christmas lights: Why in series?

  • greypilgrim
  • · Replies 1 ·
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1

Undergrad Difference between elastic and coherent scattering

  • Gennaro
  • · Replies 6 ·
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6

High School Could church domes be used to project clouds on the floor?

  • farolero
  • · Replies 7 ·
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7

Graduate Unequal photon impact from interference pattern

  • cala
  • · Replies 31 ·
2
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31

High School Microwave oven is prevents mobile signal?

  • P G Krish
  • · Replies 4 ·
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4

Undergrad Can you measure light speed with a trillion FPS camera?

  • Mohd Abdullah
  • · Replies 23 ·
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23

Undergrad Does LED pulse rate affect the frequency of photons emitted?

  • 1v1Dota2RightMeow
  • · Replies 4 ·
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4

Undergrad What is the boundary surface of a collimator?

  • kubenun
  • · Replies 5 ·
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5

Graduate Is it possible to collimate monochromatic light with a taper?

  • norrrbit
  • · Replies 14 ·
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14

Undergrad Monochromatic RGB light sources passing through a prism

  • KaylaT
  • · Replies 2 ·
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2

High School Do all light waves move at the same speed?

  • hsdrop
  • · Replies 12 ·
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12

Undergrad Synchronous Sources and Interference

  • bgq
  • · Replies 7 ·
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7

High School Can a Box Block UVC Light for Bacteria-Killing Experiment?

  • SciDude85
  • · Replies 1 ·
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1

Undergrad Diffraction experience at home

  • Frank-95
  • · Replies 13 ·
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13

High School Trying to buy some simple glass double-convex lenses

  • escuta
  • · Replies 4 ·
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4

Undergrad Making a bolt of lightning travel in a straight direction?

  • billingtame
  • · Replies 8 ·
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8

Undergrad Combing Lasers To Create One Mega Laser

  • Cayden Fish
  • · Replies 10 ·
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10

Undergrad What happens if the angle < Brewster's angle?

  • garylau
  • · Replies 1 ·
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1

High School What determines which wavelengths of light an object reflects?

  • slyrez
  • · Replies 20 ·
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20

Graduate Testing a reflective LCD spatial light modulator for laser diffraction

  • Jason E
  • · Replies 11 ·
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11

Graduate Light intensity independant of frequency and E = hf

  • DoobleD
  • · Replies 10 ·
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10

Graduate Can bremsstrahlung electrons excite rather than ionize?

  • Clara Chung
  • · Replies 1 ·
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1

Undergrad Is the Speed of Light Truly Constant?

  • avito009
  • · Replies 9 ·
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9

Undergrad Is laser light polarised? In which direction?

  • Gabriel Maia
  • · Replies 7 ·
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7

Undergrad Use of prisms vs use of mirrors in periscope

  • wlng81
  • · Replies 2 ·
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2

High School No intensity drop if slit width is negligible in double slit

  • ycheng18
  • · Replies 11 ·
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11

Graduate What is known about helical flight paths in bullets?

  • John Christoffel
  • · Replies 11 ·
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11

High School Time of flight objects in air versus in vacuum

  • Asad Raza
  • · Replies 14 ·
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14

Undergrad Thin film refractive index determination

  • sounouhid
  • · Replies 2 ·
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2

Graduate Using a V-shaped gamma ray reflector to reduce shadow shield mass

  • Sebastiaan
  • · Replies 2 ·
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2

High School Variable focal length TV / screen

  • James125
  • · Replies 3 ·
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3

Graduate Is light ACTUALLY a sinsusoidal wave?

  • yabb dabba do
  • · Replies 7 ·
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7

High School What medium does light move in?

  • aiop
  • · Replies 26 ·
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26

Graduate Looking for proof of Superpositional Energy Conservation

  • greswd
  • · Replies 34 ·
2
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34

Graduate Why does Fermat's derivation set different path times equal to first order in e?

  • jonjacson
  • · Replies 2 ·
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2

What happens to a buried lightning rod over 200 years?

  • sevitha heshan
  • · Replies 12 ·
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12

Graduate Why use cosine instead of sine in Bragg's law for this X-ray problem

  • Mohammed Shoaib
  • · Replies 2 ·
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2

Graduate What is the polarization energy?

  • TheCanadian
  • · Replies 1 ·
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1

Undergrad Two Diffraction Gratings - Rotation

  • Hunter235711
  • · Replies 1 ·
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1

Undergrad Can a wave of light activate a force on a physical object?

  • ddddd28
  • · Replies 1 ·
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1

Undergrad Where can i buy an ordinary optical collimator

  • ilik
  • · Replies 4 ·
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4

High School Does a lightning rod also avoid lightning?

  • greypilgrim
  • · Replies 17 ·
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17

Graduate Superimposing 2 sources of light slightly out of phase

  • Dace123
  • · Replies 4 ·
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4

Undergrad Is Fermat’s principle appicable to a plane wave?

  • PFfan01
  • · Replies 12 ·
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12

High School Why can't light be split into colors beyond Newton's six?

  • JB321
  • · Replies 57 ·
2
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57

Undergrad Why does the sun's reflection stretch across the ocean?

  • WilkinzMicawber
  • · Replies 3 ·
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3

Undergrad Quarter-wave plates and Half-wave plates

  • boby96
  • · Replies 4 ·
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4

Graduate Derivation of the wave equation for cylindrical waveguides

  • shayaan_musta
  • · Replies 8 ·
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8

Undergrad Huygen's principle in practical sense

  • americast
  • · Replies 3 ·
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3

Undergrad Why do sun-lit leaves look pink from certain angles in shade?

  • pixel
  • · Replies 3 ·
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3

High School Can cameras really record light itself or just slower phenomena?

  • Mohd Abdullah
  • · Replies 1 ·
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1

High School What is this tool and how is it used to study light?

  • lightresearch
  • · Replies 3 ·
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3

High School Where can I find cuvettes with transparent caps?

  • KShah423
  • · Replies 1 ·
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1

Undergrad Why doesn't the frequency change after refraction?

  • Biker
  • · Replies 11 ·
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11

High School Making a simple hologram without physics knowledge

  • julialrumi
  • · Replies 2 ·
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2

Graduate Mirror image inversion in the 4th dimension.

  • tade
  • · Replies 36 ·
2
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36

Undergrad What is the refraction of light and its relevance in Bsc physics?

  • Heather Donahue
  • · Replies 1 ·
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1

Graduate How do the units of polarizability differ between SI and Gaussian systems?

  • Steven Hanna
  • · Replies 3 ·
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3

Graduate Bragg's Law with Refractive Correction

  • saybrook1
  • · Replies 1 ·
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1

Graduate Imaging by cylindrical concave mirror

  • Pete_L
  • · Replies 18 ·
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18

Undergrad Is it possible to magnify with a focal length of zero?

  • ksam
  • · Replies 7 ·
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7

High School What is the derivation of this equation: d = t sin θ [ 1 - (n cosθ / n' cosθ)]

  • Rosella Lin
  • · Replies 2 ·
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2