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Undergrad What should be a very simple optics question is giving me problems (two lenses)

  • FatCat0
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Undergrad Optics Question - How is light divided into a 2d image?

  • phys_person
  • · Replies 4 ·
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4

Undergrad New news about neutrinos moving faster than the spead of light?

  • AlephOmega
  • · Replies 1 ·
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1

Undergrad Why does light bend while changing media?

  • ARAVIND113122
  • · Replies 2 ·
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2

Undergrad Simple fiber optic sensor for pressure and temperature measurement

  • s_sekhar
  • · Replies 1 ·
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1

Undergrad Why do some molecules reflect photons while others transmit them?

  • ARAVIND113122
  • · Replies 1 ·
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1

Undergrad Measuring absolute reflectivity of paper using a digital camera

  • Sciurus
  • · Replies 11 ·
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11

Undergrad Why is the speed of light an exception? (same to all observers)

  • jpixel
  • · Replies 3 ·
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3

Undergrad Light Scattering: Free Electron Explanation

  • GarryS
  • · Replies 3 ·
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3

Undergrad Understanding Light diffraction

  • Misr
  • · Replies 14 ·
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14

High School Do two 1W laser beams on the same spot equal one 2W laser?

  • martin1512
  • · Replies 13 ·
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13

Undergrad Do Light Waves Have Amplitude?

  • peter.ell
  • · Replies 44 ·
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44

High School Optic axis of a calcite crystal

  • prashant07
  • · Replies 2 ·
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2

Graduate Collimating Light from a Hg Arc Lamp

  • LDF1010
  • · Replies 6 ·
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6

Graduate Reflection coefficient for EM wave on conducting plane with driven surface current

  • omnyx
  • · Replies 2 ·
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2

Strange Particles May Travel Faster Than Light

  • csmcmillion
  • · Replies 1 ·
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1

Undergrad Why Is the Angle of Incidence Crucial in Understanding Light Refraction?

  • peter.ell
  • · Replies 3 ·
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3

Graduate Why do massive particles accelerate to near light speed in the LHC?

  • bensonsearch
  • · Replies 17 ·
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17

Undergrad Why the first fringe is the biggest and brightest one?

  • jaumzaum
  • · Replies 7 ·
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7

High School Refractive index of optical fibre

  • Misr
  • · Replies 41 ·
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41

High School Why does repeated internal reflection increase brightness in diamonds?

  • ARAVIND113122
  • · Replies 13 ·
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13

Undergrad Why must the two slits be at the same distance in the double slit experiment?

  • Misr
  • · Replies 10 ·
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10

Undergrad Properties of an ondulatory movement

  • jaumzaum
  • · Replies 8 ·
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8

High School Why does light slow down in denser media?

  • ARAVIND113122
  • · Replies 2 ·
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2

High School Why does blue light form a circular spot and red light a rectangular spot through glass?

  • Misr
  • · Replies 5 ·
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5

High School Why does cryolite coating prevent ray loss in prisms?

  • Misr
  • · Replies 2 ·
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2

Graduate How does spatial coherence affect focusability of laser?

  • worwhite
  • · Replies 5 ·
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5

Undergrad What is luminance and how is it used in optics and vision science?

  • a b
  • · Replies 3 ·
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3

Undergrad Optics - Having trouble with a few concepts

  • Xyius
  • · Replies 6 ·
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6

Graduate Energy conservation in destructive interference.

  • siddharth5129
  • · Replies 14 ·
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14

Graduate How to measure whether a photon's polarization is in a pure or mixed state

  • nard
  • · Replies 1 ·
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1

Graduate Kinetic Energy of an object at the speed of light

  • GammaR4yBurst
  • · Replies 24 ·
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24

Undergrad Are reflected mixed colors new photons or separate photons detected together?

  • Edi
  • · Replies 9 ·
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9

Graduate Using Light to Make Processors with Features Smaller than It's Wavelength?

  • peter.ell
  • · Replies 3 ·
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3

Undergrad Situations that Require the Accurate Determination of Refractive Index

  • despair04
  • · Replies 1 ·
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1

Undergrad Optical Design and Simulation Software

  • y33t
  • · Replies 2 ·
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2

High School Audio signals transferred by a light source

  • cynricng
  • · Replies 4 ·
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4

Undergrad Wavelength sand refractive index

  • Misr
  • · Replies 1 ·
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1

High School Why is a thin prism always at minimum deviation?

  • Misr
  • · Replies 1 ·
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1

Graduate Some questions about polarization and intensity

  • a b
  • · Replies 3 ·
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3

Undergrad Does Light Really Have a Wavelength?

  • peter.ell
  • · Replies 14 ·
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14

Graduate Does reflected fundamental wave contribute to SHG in thin nonlinear films?

  • johng23
  • · Replies 1 ·
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1

Graduate How is a photon absorbed by an electron?

  • GarryS
  • · Replies 1 ·
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1

Graduate HST-1 moving faster than light?

  • vhbelvadi
  • · Replies 9 ·
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9

Undergrad Improvised Optics Lab Equipment

  • LumenPlacidum
  • · Replies 8 ·
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8

Undergrad What Causes Changes in the Wavelength and Velocity of Light During Refraction?

  • Misr
  • · Replies 4 ·
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4

Undergrad Can Snell's Law Be Proven Mathematically for Sound and Light Refraction?

  • Misr
  • · Replies 7 ·
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7

Undergrad Why only rays 2 and 5 are considered in thin film interference

  • abcd8989
  • · Replies 2 ·
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2

Undergrad What does refractive index depend upon?

  • Misr
  • · Replies 7 ·
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7

Graduate Reflected wave at complex refractive index

  • superg33k
  • · Replies 1 ·
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1

Graduate How to detect the phase of a laser beam directly?

  • xhtp2000
  • · Replies 17 ·
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17

Graduate What does the ratio sin(φ1)/sin(θ4) depend on for light through parallel layers?

  • Misr
  • · Replies 5 ·
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5

Graduate Cooling in Cosmic Microwave Background

  • merlinisproof
  • · Replies 7 ·
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7

Undergrad What Causes Radio Stations to Mix and How Does it Affect Listening?

  • the ads 13
  • · Replies 3 ·
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3

Undergrad Does 5% accuracy mean the same as 5% percent error?

  • elegysix
  • · Replies 7 ·
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7

Graduate Diffraction from Sub-Wavelength Features

  • peter.ell
  • · Replies 2 ·
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2

Graduate Spectral width of an optical pulse

  • narra
  • · Replies 2 ·
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2

Graduate Why Do Some Diffraction Orders Go Missing?

  • prashant07
  • · Replies 2 ·
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2

Graduate How Does 1J of Energy Propel a 1kg Mass in Space?

  • guss
  • · Replies 5 ·
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5

Undergrad What happens if eye lens and objective lens are interchanged in

  • Manis
  • · Replies 2 ·
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2

Graduate What is an acoustically soft/hard scatterer?

  • Hedzlone
  • · Replies 2 ·
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2

Undergrad How come I can see the entire face of a distant object.

  • Jaxamercy
  • · Replies 9 ·
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9

Graduate Can Near Light Speed Travel Overcome Time Dilation and Physical Limitations?

  • Diezehl
  • · Replies 7 ·
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7

Undergrad Atomic clocks and the speed of light

  • glassjester
  • · Replies 1 ·
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1

Undergrad How to find signal level and footprint for a spectrometer design

  • sadegh4137
  • · Replies 2 ·
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2

Graduate Achieving speed of light via rotation on an axle?

  • awiltz2
  • · Replies 6 ·
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6

High School Physical quantities/ magnitudes

  • Gruxg
  • · Replies 1 ·
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1

High School How much light can be captured and stored in a fixed volume?

  • sadie
  • · Replies 10 ·
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10

Graduate Extremely High Energy Photons?

  • phantom887
  • · Replies 4 ·
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4

Undergrad Why are X-rays absorbed in the atmosphere.

  • Naty1
  • · Replies 1 ·
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1

High School Can you stand on enough concentrated light?

  • An Open Mind
  • · Replies 14 ·
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14

Undergrad Determining LED light intensity from its radiant power

  • rc101268
  • · Replies 5 ·
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5

High School What happens to photons after they are produced by lightning?

  • An Open Mind
  • · Replies 6 ·
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6

Undergrad Newtonian Form of Lens Equation

  • JSGandora
  • · Replies 12 ·
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12

High School Can a lightning take the same path multiple times?

  • unbox13
  • · Replies 10 ·
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10

Graduate Light wave interference questions

  • rp1220
  • · Replies 3 ·
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3

Undergrad Why do gamma rays penetrate materials but visible light does not?

  • jishitha
  • · Replies 6 ·
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6

Undergrad Properties of polarized beam splitters

  • Albert V
  • · Replies 1 ·
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1

Graduate CCD measures intensity prop. to z-component of C-Poynting vector OR |E-field|^2

  • omg!
  • · Replies 3 ·
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3

High School Reversing polarity on a battery?

  • Evil Bunny
  • · Replies 6 ·
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6

Graduate How much energy can be stored using microwave energy storage?

  • Stanley514
  • · Replies 6 ·
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6

High School Why Do Car Headlights Start Bright But Quickly Dim?"

  • Himal kharel
  • · Replies 1 ·
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1

Undergrad Getting parallel lines from a line laser for a photoresistor setup

  • hesen
  • · Replies 8 ·
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8

Graduate How do quarter-wave plates work across multiple wavelengths in 3D cinema?

  • robphippen
  • · Replies 9 ·
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9

Graduate What is the result of combining two identical quarter-wave plates?

  • fermatsenigma
  • · Replies 7 ·
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7

High School Left hand and right hand circular polarization

  • amir11950
  • · Replies 2 ·
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2

Graduate Does impedance matching eliminate reflection at non-normal incidence?

  • a b
  • · Replies 2 ·
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2

Undergrad Why does black paint absorb all visible light wavelengths?

  • davo789
  • · Replies 15 ·
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15

Undergrad Do Cars Moving Near Light Speed Appear Faster to Each Other?

  • AgentPancake
  • · Replies 3 ·
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3

Why is the speed of light limited to a countable number

  • AgentPancake
  • · Replies 4 ·
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4

High School What would things look like if i was moving as fast as light

  • AgentPancake
  • · Replies 1 ·
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1

High School How is a wave reflected in an open pipe?

  • Himal kharel
  • · Replies 1 ·
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1

High School Phase difference and path difference

  • Misr
  • · Replies 5 ·
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5

High School What is the difference between superposition and interference?

  • Misr
  • · Replies 2 ·
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2

Condensation in vacuum container

  • IanCremona
  • · Replies 2 ·
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2

Undergrad Head on collision between mirror image vehicles

  • cimmee
  • · Replies 5 ·
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5

Undergrad Does light interact with an atomic nucleus

  • KitK
  • · Replies 15 ·
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15

Lighting a candle, blowing it out and relighting it by lighting the smoke?

  • Ntstanch
  • · Replies 3 ·
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3

Graduate If light is not affected by time, then why does light cool down over time?

  • conner.ubert
  • · Replies 1 ·
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1

High School Understanding Parallel Light: Answers to Your Questions

  • nousername
  • · Replies 4 ·
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4