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What is it about ice that makes it so reflective?
Mar 31, 2021
Replies
20
Views
4K
Critical angle (symmetry of refraction) confusion
Mar 23, 2021
Replies
5
Views
2K
Using constructive interference of audio frequency waves to lower distortion
Mar 22, 2021
Replies
3
Views
2K
ِAngular distribution of a scattered field
Mar 16, 2021
Replies
2
Views
954
Double Glazed Window Reflection
Mar 10, 2021
Replies
25
Views
7K
Rotation of the plane of polarization of light by glucose
Mar 8, 2021
Replies
4
Views
2K
ABCD matrix formalism for concave mirror
Mar 7, 2021
Replies
5
Views
3K
Question about whether UV light can penetrate a cardboard box
Mar 3, 2021
Replies
22
Views
7K
Interference colors on a vinyl record
Mar 1, 2021
Replies
26
Views
3K
Calculating the degree of polarization of reflecting light
Mar 1, 2021
Replies
2
Views
2K
Achieving the speed of light at the end of a whip
Feb 20, 2021
Replies
15
Views
5K
Basic question pertaining to Polar Coordinates & how to employ them
Feb 20, 2021
Replies
2
Views
1K
Lensmaker's equation when the 2 mediums on both sides of the lens are different
Feb 15, 2021
Replies
1
Views
4K
Question on Optical Systems and Lenses
Feb 15, 2021
Replies
1
Views
1K
Is this a diffraction pattern?
Jan 24, 2021
Replies
10
Views
2K
Does twisted light violate Fermat's principle?
Jan 20, 2021
Replies
11
Views
1K
A way to make the standing-wave patterns in a microwave oven visible
Jan 13, 2021
Replies
4
Views
3K
The sources of error in a diffraction grating experiment
Jan 12, 2021
Replies
7
Views
7K
Spectrum of laser light absorbed and re-emitted by a white object
Jan 12, 2021
Replies
7
Views
2K
Classical explanation for microwave door shielding
Jan 10, 2021
Replies
19
Views
3K
Instrument using two concave lenses
Jan 9, 2021
Replies
3
Views
1K
Does the ruby laser (the first invented laser) have nonlinear behavior?
Jan 5, 2021
Replies
5
Views
2K
A heavier person vs. a lighter person diving into a pool
Jan 5, 2021
Replies
6
Views
3K
Can heavy objects be used to modulate light waves with small amplitude?
Dec 27, 2020
Replies
4
Views
1K
What causes this curious light phenomenon? (video inside)
Dec 25, 2020
Replies
11
Views
2K
Why does the polarity of a bass guitar recording vary?
Dec 18, 2020
Replies
10
Views
2K
Particle analysis of diffraction
Dec 16, 2020
Replies
1
Views
732
How does a wave with circular polarization behave?
Dec 15, 2020
Replies
9
Views
2K
Interference in thin films; confusion regarding geometry
Dec 14, 2020
Replies
4
Views
1K
Suspended particles and the index of refraction
Dec 11, 2020
Replies
8
Views
1K
How does the speed of light change when it enters glass?
Dec 9, 2020
Replies
12
Views
3K
Can Light Travel Faster Than the Speed of Light in Glass?
Dec 9, 2020
Replies
18
Views
2K
Is Light a Wave or a Particle?
Dec 7, 2020
Replies
17
Views
24K
Circuits and the Speed of Light (2)
Dec 4, 2020
Replies
2
Views
1K
Circuits and the Speed of Light
Dec 4, 2020
Replies
2
Views
944
How Does VIS-NIR Reflectance Linearity Vary in Mixed Color Pigments?
Dec 1, 2020
Replies
4
Views
1K
A living thing made of different photonic molecules?
Dec 1, 2020
Replies
2
Views
1K
Deriving the Law of Reflection from Huygens Principle
Nov 28, 2020
Replies
5
Views
2K
What is it that makes light rebound off a surface?
Nov 27, 2020
Replies
1
Views
2K
Where do photons originate in a vacuum filament?
Nov 25, 2020
Replies
17
Views
2K
Can we see real, inverted and magnified images without a screen?
Nov 24, 2020
Replies
4
Views
3K
How Does Compton Scattering Influence Backscatter Scanner Technology?
Nov 18, 2020
Replies
1
Views
1K
Diffraction of light and conservation of energy.
Nov 15, 2020
Replies
3
Views
2K
Negative Concave Lens - Creating a Beam Expander
Nov 14, 2020
Replies
7
Views
3K
Lens selection for close proximity surface photos
Nov 12, 2020
Replies
11
Views
1K
Adding Zooming Capability to my Far Infrared Spectrum Sensor
Nov 6, 2020
Replies
12
Views
2K
How to calculate shadows in nanophotonics
Nov 5, 2020
Replies
17
Views
2K
Polarisation through a chiral nematic crystal
Nov 2, 2020
Replies
9
Views
1K
Does a material change the direction of polarization of light?
Nov 1, 2020
Replies
7
Views
2K
Question about two-stage light gas guns
Oct 30, 2020
Replies
1
Views
1K
Acoustic reflections from an elliptical wall in Urbino city (Italy)
Oct 29, 2020
Replies
2
Views
1K
Reflection of inverted waves to form a standing wave
Oct 22, 2020
Replies
3
Views
1K
Differences between X-rays and Gamma rays
Oct 16, 2020
Replies
3
Views
1K
Can you calculate optical density from permittivity and permeability?
Oct 10, 2020
Replies
19
Views
2K
Why does a divergent lens create an interference pattern?
Oct 7, 2020
Replies
3
Views
1K
Apparatus for a polarization filter rotator dial
Oct 2, 2020
Replies
6
Views
2K
Can Two Laser Beams with Different Phases Interfere?
Sep 19, 2020
Replies
10
Views
3K
Why can't light pass through to the dark side of a window?
Sep 13, 2020
Replies
6
Views
2K
Kramers-Kronig relation for refractive index
Sep 10, 2020
Replies
1
Views
3K
Image in a glass sphere (Ray Optics)
Sep 4, 2020
Replies
4
Views
2K
Radar Reflection: Charged vs Non-Charged Objects
Sep 3, 2020
Replies
8
Views
1K
Brain function & bipolar: fluid volume & speed of information in tubes
Aug 30, 2020
Replies
1
Views
827
Can we connect two laser sources to make a stronger beam with a larger radius?
Aug 28, 2020
Replies
11
Views
1K
Do two light waves with difference frequencies connect when they meet?
Aug 26, 2020
Replies
5
Views
2K
Measuring Reflectance with a Digital Camera
Aug 22, 2020
Replies
9
Views
2K
Light interacting with Matter -- Does the wavelength make a difference?
Aug 21, 2020
Replies
13
Views
2K
Please Explain My Polarized Light Experiments
Aug 16, 2020
Replies
12
Views
2K
Light speed and refractive index
Aug 11, 2020
Replies
25
Views
3K
Controlling output light power by constructive/destructive interference
Aug 4, 2020
Replies
5
Views
2K
What is the logic behind the mirror symmetry method of solving circuits?
Aug 4, 2020
Replies
18
Views
12K
How will light react in this situation....
Aug 2, 2020
Replies
7
Views
1K
Why do shadows change shape when light is shone on them?
Jul 29, 2020
Replies
5
Views
1K
How did Becquerel discover the connection between phosphorescence and X-rays?
Jul 26, 2020
Replies
2
Views
2K
Why do people refer to the "fast axis" vs. "slow axis" of Diode Lasers?
Jul 18, 2020
Replies
2
Views
4K
Concentric Meniscus Lenses Design
Jul 18, 2020
Replies
3
Views
2K
Insight into polar coordinates (Newtonian mechanics)?
Jul 18, 2020
Replies
8
Views
1K
What Causes Molecules to Aggregate Over a Fiber in Optical Trapping?
Jul 18, 2020
Replies
2
Views
1K
Why does light take a longer path in a rarer medium?
Jul 14, 2020
Replies
9
Views
2K
Why does the amount of Refraction depend on wavelength?
Jul 14, 2020
Replies
1
Views
1K
Modes of laser propagation in cylindrical optics
Jul 13, 2020
Replies
2
Views
1K
Reflection and transmission of waves in a medium of nonuniform density
Jul 11, 2020
Replies
10
Views
2K
Is the length of the arm r in a polar coordinate a function of the angle?
Jul 11, 2020
Replies
27
Views
2K
A particle moving with zero radial acceleration in polar coordinates
Jul 10, 2020
Replies
2
Views
1K
Elliptical facet cylindrical optical fiber - Mathieu equation
Jul 6, 2020
Replies
1
Views
988
Classically, how can I explain Reflection?
Jul 3, 2020
Replies
4
Views
1K
How to explain TE20 mode in a rectangular waveguide from reflection
Jul 1, 2020
Replies
2
Views
2K
Focus or parallelize the light from an LED
Jun 26, 2020
Replies
2
Views
1K
Internal reflection equation question
Jun 25, 2020
Replies
4
Views
2K
Interference of light by splitting the wavefront and recombining
Jun 23, 2020
Replies
8
Views
2K
Are Polycarbonate Sunglasses Effective Against UV Rays?
Jun 22, 2020
Replies
12
Views
2K
What are the key considerations for imaging with a condenser fresnel lens?
Jun 14, 2020
2
Replies
58
Views
7K
Understanding Zero-G Flight Physics: How Men Navigate Curved Paths in Airplanes
Jun 12, 2020
Replies
11
Views
2K
Geiger Counter and ultraviolet light sources
Jun 11, 2020
Replies
18
Views
4K
Y-component of the force vector in turning flight
Jun 8, 2020
Replies
10
Views
1K
Can you make a more focused beam by using convex and concave lens?
Jun 4, 2020
Replies
1
Views
1K
Some Flight Calculations and the Motion of the Earth
May 28, 2020
Replies
11
Views
2K
Size of a light beam before and after Refraction
May 22, 2020
Replies
8
Views
2K
Photon wavelengths and frequencies
May 21, 2020
Replies
7
Views
1K
Can anyone explain this derivation of the variable mass equation?
May 17, 2020
Replies
4
Views
1K
Brewster's angle and the intensity of reflected light
May 15, 2020
Replies
4
Views
2K
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