Recent questions in Visible Light

+11 votes

0 answers

Can I use a handheld spectroscope to measure intensity of light? If so, how can I analyze the intensity of a light as well as the color that the diffraction spectrum makes?

asked Apr 15, 2023 in Visible Light by colmac2000

+106 votes

0 answers

When light emerges from glass, what makes it resume its previous speed?

asked Apr 15, 2023 in Visible Light by EmberHarmony

+199 votes

0 answers

Why am I seeing flashes of light outside my window at night? My bedroom isn’t facing the road. When I see these flashes, I don‘t hear any cars. I think I have now also seen a shadow.

asked Apr 14, 2023 in Visible Light by DIY Guy

+25 votes

0 answers

How do I get a filter to a screen monitor that makes light go to an infrared light spectrum? How do I find contact lenses or glasses to return the light back for my eyes to visible spectrum?

asked Apr 14, 2023 in Visible Light by SeraphicMystic

+10 votes

0 answers

Can light be created or destroyed? If so, what would it mean for our universe as a whole?

asked Apr 14, 2023 in Visible Light by Alex Scott

+26 votes

0 answers

Can I use a 60 watt halogen bulb instead of a 100 watt incandescent bulb?

asked Apr 14, 2023 in Visible Light by Red Oak

+177 votes

0 answers

How much distance does a light ray travel if we place a torch vertically upward? If it stops, what will happen to its photons? Why would it stop?

asked Apr 14, 2023 in Visible Light by joinerjohn1

+135 votes

0 answers

Why do we see infrared and ultraviolet (UV) rays as different colors?

asked Apr 14, 2023 in Visible Light by Blindfitter

+6 votes

0 answers

How much money did Oprah make when she sold her Gustav Klimt painting for $150 million?

asked Apr 13, 2023 in Visible Light by EmberEcho (3.1k points)

+166 votes

0 answers

If a chemical is blue or red or orange or any color, is it because the chemical is reflecting, back light in that exact wavelength or absorbing light in all wavelengths, and only reflecting back that wave length or perhaps even both scenarios?

asked Apr 13, 2023 in Visible Light by MysticHarmony

+19 votes

0 answers

If a glass rod is placed in steam, its length increases, but what do you think will happen to its width?

asked Apr 13, 2023 in Visible Light by LunarChaos

+191 votes

0 answers

What are the uses of a torch light?

asked Apr 13, 2023 in Visible Light by MPR Tiling

+14 votes

0 answers

What is the frequency of light in a vacuum?

asked Apr 13, 2023 in Visible Light by JT101

+17 votes

0 answers

How does a light bulb produce different colors of light?

asked Apr 13, 2023 in Visible Light by chesterw

+27 votes

0 answers

Why do we see black, if black is absorbing all light then shouldn't it be impossible to see different shades of it?

asked Apr 13, 2023 in Visible Light by Andrew Whiteman

+22 votes

0 answers

Why do we not hear the sound of light traveling from one place to another?

asked Apr 13, 2023 in Visible Light by globalpermanent

+282 votes

0 answers

In that the frequency of light from a receding light source changes for a relatively stationary observer should we not also expect the speed to change? Why should just one property of light remain invariant?

asked Apr 13, 2023 in Visible Light by NikkiJane

+2 votes

0 answers

Is the darkness of space a shadow, or is it merely due to the absence of light, as I can't quite separate the two in my mind, you know the darkness of space and shadow? Does the empty void have any surface at all, as to a separate question people answered that the void interacts with objects in it?

asked Apr 13, 2023 in Visible Light by brigard

+227 votes

0 answers

What does a black light look like when it is turned on?

asked Apr 12, 2023 in Visible Light by arwnforce

+12 votes

0 answers

Is it possible to modulate the brightness of an infrared light by 2.4GHz? Is the circuitry to do this complex?

asked Apr 12, 2023 in Visible Light by LunarWhirl

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