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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
What is the problem when 2000 tracker 4X4 indicator light flashes?
When the 4X4 indicator light on a 2000 Tracker flashes, it could indicate an issue with the 4X4 system such as a faulty actuator, sensor, or wiring problem. It is recommended to have the system diagnosed by a qualified mechanic to determine the exact cause of the flashing indicator light.
How does light affect the way you see colors?
Generally, the more light, the more plant growth. Color is more related to the type and amount of nutriments or fertilizer in the soil. ....More Info Amount of sunlight does affect growth and LEAF colour of plants. Sometimes flower colour is affected as well. Certain plants do better in shady, low-light locations than in full sun locations. Shade loving plants planted in hot sunny locations often have pale, semi-transparent leaves sometimes with brown dry edges (water is evaporating too fast from the plant and too intense sunlight is 'bleaching' colour, basically dehydration and sunburn is occurring.), and may grow thin and weak. Sun loving plants planted in shady low-light locations often have darker or lighter coloured leaves, fewer & smaller flowers and can look weak and thin. Greatly reduced sunlight for sun-loving plants can also stunt growth.
Flower colour is determined by plant genetics. Inappropriate sunlight may slightly alter flower colour to a paler or deeper shade of the same colour and NOT change from red to white. Example: "Nellie Moser", a Clematis, grows well in both sunny and shady locations. Flower is a much deeper shade of pink when grown in the shade.
How does instrument parameters affect the absorption spectrum?
Instrument parameters such as resolution, signal-to-noise ratio, and detection limit can affect the accuracy and precision of absorption spectra measurements. A higher resolution can provide more detailed peak information, while a higher signal-to-noise ratio can improve the sensitivity of detecting small absorbance changes. Additionally, a lower detection limit can allow for the detection of lower concentrations of analytes.
Where can tritium light sources be acquired?
Tritium lighting is made using glass tubes with a phosphor layer in them and tritium (a hydrogen isotope) gas inside the tube. Such a tube is known as a "gaseous tritium light source" (GTLS). Because tritium in particular is an integral part of thermonuclear devices (though in quantities several thousand times larger than that in a keychain), devices containing tritium are considered dual-use technology in the U.S.A., and are therefore illegal for export. However, they are widely available in the U.K., most of Europe (some countries like Belgium have outlawed them however), Asia and Australia. Tritium devices can be purchased in the UK and Australia, but are illegal for import to the United States, however they are available in the US as gunsights and for military applications. UK Source
http://www.crazyaboutgadgets.com/detail.asp?ID=371 AU Source
http://www.kitbag.com.au/prod849.htm USA Source (Military Personnel only)
http://www.ameriglo.net/tactical_dev.htm You can also find tritium lighting in the US without having to be military personnel at http://www.unitednuclear.com. They have a limited stock, though.
Light bulbs e for head lights in a 2002 impala ls?
The 2002 Chevrolet Impala LS uses HIR1 (9011) bulbs for its low beam headlights and H1 bulbs for its high beam headlights. It is recommended to consult the vehicle's manual or a professional technician for the correct replacement bulb.
When the tip of a ballpen is rubbed in your hair why do it attract light objects?
The tip of a ball pen is plastic. When plastic is rubbed in a person's hair it attracts light objects due to static electricity. It can be any plastic that will create the static electricity. Even an inflated balloon will do this trick.
You repaired a bearing in a 2003 jeep rubicon now the locker light flashes?
the sensor in the side of the differential that has the electrical plug on it that's what works the locker light on the dash. when you lock it in that sensor is pulled over by the ring on the side of the locker and when that ring is fully pushed over it changes the light from flashing, to on solid. but be careful if you take that sensor out you can't put it back in without pulling the gears or when you put it back it in it will stay locked all the time i found out the hard way.
Are down lights better with or without transformer?
It depends on the type of downlights being used. LED downlights generally do not require a transformer as they operate on low voltage directly from the mains. However, if you're using traditional halogen downlights, they typically require a transformer to step down the voltage to a safe level for the lights to operate.
A Dimension, in the mathematical sense, is any direction in which a point can be moved.
A two dimensional plane has 2 directions: up/down, left/right (diagonals are not counted as dimensions)
A three dimensional plane has up/down, left/right, forward/backward
Scientists currently work with the model that we live in 4 dimensional space: up/down, left/right, forward/backward, past/future (3 spatial dimensions +1 dimension of time)
However, there are scientific models (such as string theory) which have more than 4 dimensions.
i have the same question on my test haha
for me, the answers are:
a) The number of electrons ejected per second
b) the maximum kinetic energy of the ejected electrons
c) the threshold frequency of the ejected electrons
d) the time lag between the absorption of blue light and the start of emission of the electrons
e) none of these A the number of electrons ejected per second,,,,, correct answer
Why is it important to have an indicate light on a surge suppressor?
the circuitry inside the suppressor that handles a surge can burn out if a surge is too high or lasts too long; in which case the cord would continue to work without surge protection making the connection vulnerable.
Are dashboard lights and indicator lights the same thing?
no. however your indicator lights are located in your dashboard. dashboard light will light up when you turn your headlights on. Ex. the lights that are illuminated behind your miles per hour needle or behind your fuel gauge. Your indicator light are a lights that come on when your first turn the ignition. these lights indicate when your oil needs to be changed or your fuel is low or your washer fluid is low or the blue light that is illuminated when your headlights are on bright or high beam etc.....most newer model cars are equipped with the indicator lights. hope this is helpful.
How many colors are there in the spectrum?
Remember the name ROY G. BIV. Red, orange, yellow, green, blue, indigo and violet.
The colors in the spectrum blend into each other, so you could say that there are thousands of colors in the spectrum. Conventionally there are seven colors - Red, Orange, Yellow, Green, Blue, Indigo, Violet.
When two beams of light coming from opposite directions meet do they converge?
light is nothing but a part of the electromagnetic spectrum..all EM radiations travel in the form of waves...so ,when two light radiations are considered, they interfere with each other to form a new wave with a different frequency...the interference can be constructive or destructive depending upon the phase angle with which the rays interfere.
What is intrinsically safe flash light?
An intrinsically safe flashlight is designed to minimize the risk of causing ignition in hazardous environments where flammable gases, dust, or vapors are present. These flashlights are engineered to prevent sparks or excessive heat that could potentially ignite the surrounding atmosphere, making them safe to use in such environments.
What light bulb number for a 99 Toyota Camry?
The 1999 Toyota Camry uses H4 halogen bulbs for its headlights. It is recommended to consult the vehicle's owner's manual for specific bulb numbers and replacement instructions.
Can light have a single wavelength?
Yes, light can have a single wavelength, which would correspond to a specific color in the visible spectrum. Different sources of light emit light with varying wavelengths, resulting in the various colors we perceive.
What causes light to accelerate?
Light does not accelerate. In a vacuum, light always travels at a constant speed of approximately 299,792 kilometers per second, known as the speed of light. It only changes speed when it passes through different mediums.
This one is fluorescence. The example of high-lighters is that they absorb UV light (so-called "black light") and re-emit at the visual range, yellow, pink, orange. UV is a higher frequency than visible light.
Just so you know, there is no process where something absorbs low-frequency and re-emits at a high frequency.
The same idea, light being absorbed and re-emitted at a different frequency - has two main types. If it happens immediately, it is "fluorescent" (think highlighters in a black light) If there is a delay, it is "phosphorescence." Both effects and the delay in the second, are the result of quantum mechanics.
Only a portion of the North American craton is visible because the rest has been?
covered by sedimentary rocks or has been eroded away over time.
Why can't hermit crabs see anything in the red spectrum?
Hermit crabs cannot see in the red spectrum because their eyes primarily contain a single type of photoreceptor that is sensitive to light in the blue to ultraviolet range. This means they are unable to detect red light due to the lack of specific photoreceptors for that wavelength.
Is visible light same as ultraviolet light?
No, visible light and ultraviolet light are not the same. Visible light is the range of electromagnetic radiation that can be detected by the human eye, while ultraviolet light has a shorter wavelength and higher frequency than visible light, making it invisible to the human eye.
Has a longer wavelength than visible light can be used in cooking and communication with satellites?
Microwaves have a longer wavelength than visible light and are commonly used in cooking, as they are able to penetrate food and cause water molecules to vibrate, generating heat. Microwaves are also used in satellite communication to transmit signals due to their ability to travel through the Earth's atmosphere and interact with satellites in orbit.
There are few things that are perfectly black. You can see many things, with detail, that are colored black. Obviously whatever you see is reflected light, light not being absorbed by the object. The reflection you see from the blackened glass is probably light coming off the glass itself, which remains uncolored, if you think about it. The color cuts down on interference from objects that would otherwise show through the glass. It is not absorbing all light. The reflected images are light it is reflecting back. When it looks black however it is not reflecting light into your eyes.
Which of the visible spectrum colors corresponds to the largest energy change?
The color violet corresponds to the largest energy change in the visible spectrum. It has the shortest wavelength and highest frequency, resulting in higher energy compared to other visible colors like red or blue.
