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A: gallium arsenide
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∙ 13y ago
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What is the difference between concrete and material noun?
The main difference between concrete and material noun. Concrete are those noun which we can feel with five sense organ. Material are those from which other things are made. Every material noun can be concrete. But every concrete can't be material.
What is the purpose of a LED in a circuit?
An LED, or light emiting diode, can have many functions. Commonly used as a solid state light emitter, LEDs of nearly any color of light are available, including ultraviolet and infrared.A less obvious use of a light emitting diode is to detect light. A LED makes a very efficent and narrow band light detector. It will produce electric current in response to light that is about the same wavelength (and therefore color) as when it is used as an emitter.Another use of an LED is to make a fairly stable voltage reference; A red LED when forward biased will have a steady voltage drop of about 1.8 volts, an orange LED produces a voltage drop of about 2.0 volts, and about 3.5 volts for blue and white emitting LEDs.LEDs can be used as modulated light emitters to transmit speech, music and digital information. A good example is a television remote control which digitally pulses a infrared LED to change channels, control volume, and so on.LEDs are used in solid state switches when optically coupled to a photodiode or photo resistor. LED flashlights are very common, and some small light bulb replacements are available, with larger bulb replacements soon to come. Some links are provided below:
What is the brightest light emitting diode?
L.E.D or light emitting diode A light-emitting diode (LED) is a semiconductor light source.[3] LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. Introduced as a practical electronic component in 1962,[4] early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness
What is nanotechnology used in?
suncream the one that doesn't leave white marks. it has titanium dioxide and zinc oxide in the cream these two reflect uv rays but absorb visible light they are so small that they are invisible and leave no white marks
What types of bulbs used for street lighting?
You may use electronic bulb of any kind in your street. It is entirely depends upon your choice but the main thing you should keep in mind that their light should be of white color like tube light. Because it will be more difficult to see things in some other color other then the white one.
Why zinc oxide yellow while hot and white while cold?
this has to do with the frequency of light the zinc sends out and reflects. Just as iron turns red and when very hot white zinc turns yellow. In a old light bulb a wire of wolfram is used to create yellow light. So the light that it sends and reflects is a material property
Why does a sheet of paper appear white?
Because the material it is made out of only reflects white light.
What is a transparent material that separates white light into its component colors by refraction?
refraction.since white ligth
What colors create white light?
All the colors of the spectrum.
What light mixes together to create white light?
all the 7 colors of the rainbow i.e VIBGYOR mixes together togive white light.
What happens to white light if it goes through a colored transparent material?
since white ligth actually contains all colors of light, the transparent material only lets its color of light through. ie: blue filter allows blue light in
Which colour material reflects all light and absorbs none?
White
Why does black absrorb light and white reflect light?
Black, white, or any color are the result of the absorptive properties of the surface or material that appears that way to your eyes. It depends on the wavelengths of light that the material, fabric, dyes, or paint does and doesn't absorb.
Are red blue green the colors that create white light?
No, it is actually all 7 colors of the rainbow (red, orange, yellow, green, blue, purple, violet) that create white light.
What color does blue and white create mixed?
light blue - it depends on how much white you use.
What color does blue and white create when mixed?
light blue - it depends on how much white you use.
If white light goes into a material and only blue light comes out the other wavelengths have been?
absorbed
