0
Light bulbs aim to emulate the light emitted by the Sun, which radiates as a black body at 6000 degrees C. The light is emitted over the entire visible spectrum.
Some bulbs produce monochromatic light, sodium street lights for example.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
Is the light from an incandescent lamp monochromatic?
No, an incandescent bulb i.e. a bulb that emits light by the generation of heat, emits white light and is therefore not monochromatic. For a source to be monochromatic, the light emitted must be of a single wavelength.
Is monochromatic light is a ultra violet light?
Monochromatic light is light of one wavelength. E.g. A red laser has one single wavelength and is therefore categorised as 'monochromatic light'. A standard light bulb emits light of many different wavelengths across the visible spectrum and therefore is not 'monochromatic light'.
Is LED a monochromatic light?
Almost, but it has some spreading. Laser diodes are monochromatic.
How do you know whether to get 120 volt or 130 volt light bulb?
If you want your bulbs to last longer then use 130 volt bulb on a 120 volt system. The light emitted by a 130 volt bulb, when comparing it to a 120 volt bulb, will be a bit dimmer.
What is the wave length of a 25 watt incandescent light bulb?
Since white light is emitted from an incandescent bulb, it contains all wavelengths in the visible light spectrum between 400 to 700nm. It also emits wavelengths in the infrared region.
Is the light from an incandescent lamp monochromatic?
No, an incandescent bulb i.e. a bulb that emits light by the generation of heat, emits white light and is therefore not monochromatic. For a source to be monochromatic, the light emitted must be of a single wavelength.
Is monochromatic light is a ultra violet light?
Monochromatic light is light of one wavelength. E.g. A red laser has one single wavelength and is therefore categorised as 'monochromatic light'. A standard light bulb emits light of many different wavelengths across the visible spectrum and therefore is not 'monochromatic light'.
What makes a light bulb an example of radiation?
The luminous radiation emitted by the light bulb.
Why isn't an iron casing used for a light bulb?
If iron is used, there will be no light emitted from the light bulb as iron is opaque.
Do lasers emit monochromatic light?
Yes, lasers emit coherent monochromatic light due to the process which light is created. It is created by exciting molecules continuously to one energy level and emitting the energy back to a sort of chain effect as the emitted light is partially used to excite more molecules, therefore due to the specific energy level changes in the excited medium, the light emitted is of one specific wavelength.
Does a light bulb give off radiant or thermal energy?
THe light bulb emits light while in the process heat in the infrared spectrum is emitted.
What is the difference between spontaneous emission of radiation and stimulated emission of radiation?
The laser causes the stimulated emission of radiation. The light emitted is monochromatic and coherent,that is plane polarised. I imagine that spontaneous emission occurs in a Light emitting diode ,monochromatic but not polarised. Hope this is of help
Why tungstan light bulb generates so much heat?
The heating of the wire causes light to be emitted.
What is monochromatic in physics terms?
Mono means single Chrome means colour So monochromatic means single coloured light Example: Light coming from Sodium vapour lamp ---- Monochromatic means (light) of a single frequency or, what is the same thing, of the same wavelength.
Is LED a monochromatic light?
Almost, but it has some spreading. Laser diodes are monochromatic.
How do you know whether to get 120 volt or 130 volt light bulb?
If you want your bulbs to last longer then use 130 volt bulb on a 120 volt system. The light emitted by a 130 volt bulb, when comparing it to a 120 volt bulb, will be a bit dimmer.
Why light emitted by a bulb is yellowish in colour but from a fluroscent tube is white?
You are seeing the spectrum of the metal used in a light bulb. In a florescent tube you are seeing ultraviolet light being transformed into visible light by the internal phosphor coating.
