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Visible Light Spectrum

Join us here to ask and answer questions on the "illuminating" topic of the visible light spectrum. This includes questions about: refraction, reflection, rainbows, prisms, mixing colored lights, and the spectrum of colors that make up white light.

1,220 Questions

Which region of the visible spectrum is not absorbed well by chlorophyll?

Green light is not absorbed well by chlorophyll, which is why plants appear green to our eyes. This is because chlorophyll absorbs more efficiently in the blue and red regions of the visible spectrum.

Light produced by mixing all colors of the visible spectrum?

White light is produced by mixing all colors of the visible spectrum together. This can be seen in a rainbow where sunlight is refracted and dispersed to show the different colors. This phenomenon is known as color addition.

Which rays have the longest wavelength in the visible light?

That's the last color you can see on the redend
of the rainbow or other spectral display. It's not
exactly the same for all eyes.

Why is light from a low pressure sodium vapor lamp unpleasant?

My city invested in changing over street lighting to low sodium pressure only to end up replacing it all a few years later. The problems with low sodium pressure is two fold. Most objectionable is that the light source washes out color distinctions to the point that it is difficult to accurately describe a vehicle's color. The second objection relates to the difficulty of controlling the light output with the usual lens types. The low sodium pressure lights ended up producing annoying light diffusion to residences. The plus side is that this source of lighting is the most economical as the light output is very high.

Why is infrared radiation more harmful than visible light although it has less energy?

Although visible light has a higher level of energy (shorter wavelength), we are protected from visible light due to the ozone and oxygen particles in the Earth's atmosphere that "trap" the visible light rays damaging energy. Infrared radiation is able to penetrate the ozone because of its wavelength, which allows its rays to reach the earth's surface, be absorbed by the soil and water sources, and be reemitted into the atmosphere causing issues such as global warming, health issues, and other long term effects. Yo Dude Person

Energy of visible light can be measured in organized packets called?

The energy of visible light can be measured in organized packets called photons. These photons have discrete values of energy, meaning there is exact amounts of energy these have, and don't vary in decimal places.

What is the wavelength range of visible light?

400 (violet) to 700 (dark red) nanometers is the standard range stated in most sources.

Give some examples of electromagnetic radiation and how the relate to visible light?

Examples of electromagnetic radiation include radio waves, microwaves, infrared light, visible light, ultraviolet light, X-rays, and gamma rays. Visible light is a specific range of electromagnetic radiation that our eyes can detect, falling between ultraviolet and infrared light on the electromagnetic spectrum.

Image caused by refraction of light above warm surfaces?

The phenomenon you are referring to is known as a mirage. When light passes through air layers of different temperatures above warm surfaces, such as pavement or sand, the bending of light rays causes distorted images to form. This can create illusions of water or objects that are not actually present.

What colour is the reversing light cable on an 2006 Audi A4 2.0tdi s-line for attaching parking sensors?

The reversing light cable on a 2006 Audi A4 2.0 TDI S-Line for attaching parking sensors is typically colored white. This wire is responsible for activating the reversing lights when the car is put into reverse gear.

Why do some lights go off in your house when you turn on too many appliances?

In a well designed house the lights are not connected to the same circuit as an appliance. If by going out you are saying that a breaker trips, then your appliances and lights combined are exceeding the rating of the breaker. You either need to rewire and balance the loads better or plug high current appliances into different outlets on another breaker. If you are not tripping breakers, but lights are just dimming you have a bigger problem with inadequate current supplying your house.

What are the indications of peri-light?

having real light periods thin like water I am 39 I started my period at the age of twelve years of age.I am moderate weight try to eat healthy no longer have a sex drive. Am I peri or pre metapauseal?

What is light made of?

Light is made up of particles called photons, which have properties of both particles and waves. Photons have no mass and travel at the speed of light. When light interacts with matter, it can be reflected, absorbed, or transmitted.

Which colored light of visible light would have the highest frequency?

Violet has the highest frequency and red has the shortest. Green is in the middle: Violet 668–789 THz, Blue 606–668 THz, Green 526–606 THz, Yellow 508–526 THz, Orange 484–508 THz, Red 400–484 THz

What is the wavelength of infrared?

The wavelength of infrared light ranges from about 0.7 micrometers to 1 millimeter.

What is a Electromagnetic spectrum?

The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Each type of radiation has different properties and interacts with matter in different ways.

How do you describe a light bulb?

A light bulb is an artificial source of light that typically consists of a glass bulb containing a filament or LED that produces light when an electric current passes through it. It is commonly used for illumination in homes, offices, and other spaces.

What is the purpose of a hazard light in automobiles?

To be used in an emergency or when you are broke down on the highway. The flashing lights warn other drivers that your car is not moving. This helps prevent an accident. The were originally called emergency flashers for a reason.

Is light visible or invisible and why?

Light is both Visible, and Invisible. It depends on what frequency of light it is, and also what Species you are. For example, we Humans can't see ultra violet light but some animals, like Snakes, can see it.

How does pH's of different liquids effect metal nails?

The pH of different liquids can affect metal nails by causing them to corrode or rust at a faster or slower rate. Low pH liquids (acidic) can accelerate corrosion of metal nails, while high pH liquids (alkaline) may have a protective effect or inhibit corrosion. The severity of the effect will depend on the specific pH level and chemical composition of the liquid.

How can Polar Bears have clear fur?

Polar bear fur appears white because it is made up of transparent, hollow hairs that reflect and scatter light. These hairs can look clear but appear white due to the way they interact with light. This adaptation helps polar bears blend in with their snowy environment and provides insulation to keep them warm in the Arctic.

What does 1 red light on the xbox 360 mean?

No you are in luck if its 1 light all you have to do is clean out the dust from the xbox then unplug all you have connected to the xbox, then take out harddrive and put everything back together 80% Of the time it fixes it if not you can then turn to support at xbox.com/support you dont have to send it to them its just mother board is acting up and you need to discharge it by unplugging everything and taking out harddrive.

What is the composition of white light on sunlight?

For our purpose here, light is a radiation. What the human eye recognizes as visible light is in fact a very small portion (less than 1 percent) of Maxwell's electromagnetic spectrum -- between on one side the infra-reds, the micro waves, radar waves, and radio waves; and on the other, the ultra-violets, X-rays, and gamma rays. The most important source of visible light is the sun. Sunlight has been the energy by which life evolved and after which, therefore, photosensitivity modeled itself. It constitutes, then, the ultimate radiation, the one that makes the greatest possible use of the receptivity potential of circadian biological systems. http://www.din.umontreal.ca/courchesne/fragile7.html With regards, Andriy Hryshchenko.

Is there a deceleration indicator light for automobiles?

No, most automobiles do not have a specific deceleration indicator light. However, some modern vehicles may have warning lights that come on when there is a significant change in speed, which can indirectly indicate deceleration. It's important to rely on your vehicle's existing indicators and gauges to monitor deceleration.