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Is a light bulb symmetrical?
Most light bulbs are symmetrical because it is easier to manufacture symmetrical objects, and because the light from a symmetrical bulb is emitted in a symmetrical pattern. However, light bulbs do not have to be symmetrical and some non-symmetrical bulbs are made for special purposes. Generally, it is only symmetrical across only one axis. If you divide from globe to base in the direct center, the other half should be the same.
Indicate whether the following statement is True or False Light bulbs are non-directional devices?
True; the light shines outward in all directions.
What is the difference between fluorescent and phosphorescent lights bulbs?
Fluoresent light bulbs are run using electricity.. phosphorescentlight are not,, they have particles inside that absorb from light sources of any kind and store it away to be used , that's why they are not glowing all the time.
Where can CFL light bulbs be purchased?
You can buy an MR16 compact fluorescent bulb with bi-pin base in either 35 or 50 watt (claimed) equivalent at Home Depot. Feit Electric is the manufacturer and the bulb I bought to experiment with fell short of the claimed rating- there's no way that this 50 watt equivalent was even close to much more than a 20 watt. It was disappointing. I tried 3 of them in my bathroom to replace 3 50W halogens and it was pitifully dim... [Edit: Svartalf] I'm not at all surprised. Many of the vendors play fast and loose with the "effective" ratings. Some get closer than others, but in the end, they all fall short. Most of the "35 watt equivalent" LED and CFL answers are closer to 20 watt halogens from the bottom end of "close". I don't buy the bulk of the claims of 40 watt equivalents in the LED space. Some of them get in the ballpark, but pretty much none of the non-custom answers in the MR-16 space are honestly in the league of what they've been claimed to be. [Edit: smatda] Stay away. I purchased 3 of these from Home Depot. Two failed within 30 minutes. I took them back and exchanged them. One of the two new ones failed as well. And one of the original bulbs failed after a month. So out of 5 bulbs, 2 have actually lasted beyond 30 minutes, and only one has lasted over a month. None have lasted over two months with very light usage (maybe 15 hours a week???) I took a hacksaw and did an "autopsy" of one of the bulbs...it showed a massive transistor and capacitor failure (components were destroyed on the printed circuit board).
Why is argon used for light bulbs?
There are many different types of light bulbs. The standard filament style bulb is usually flooded with an inert gas, or pulled into a vacuum, to keep the filament from self destructing. Originally, Filaments where composed of a carbon thread. Since carbon is a resistor of electric, it can generate large amounts of heat/light.This caused almost immediate failure due to overheating and mixing with oxygen which accelerated its failure. A light bulb can in fact burn, without inert gases or a vacuum, however the life of the filament is very short (.5 seconds to 3 seconds from my experience) Florescent bulbs are slightly different. Florescent bulbs use a mixture of Argon and Mercury vapor. Electrons conduct from one end to the other while "bumping" into the mercury atoms. The electrons in turn excite the mercury vapor, when this gas returns to its unexcited state they produce ultraviolet protons. When these protons hit the phosphor coating inside the tube they create light. In summary, different styles of light bulbs use gas in different methods. However The most prevalent method is to reduce the amount of heat caused by an electrical reaction inside a tube.
Why some bulbs are transparent while other are not?
to control the light intensity. The transparent bulbs are more intensive than the non-transparent one.
Do all light bulbs produce polarized light?
No, not all light bulbs produce polarized light. The polarization of light depends on the source of light and its characteristics. LED and fluorescent light bulbs can produce polarized light, while incandescent bulbs generally do not produce polarized light.
What are the benefits of using non-UV light bulbs in comparison to traditional UV light bulbs?
Non-UV light bulbs have the benefit of being safer for human health and the environment compared to traditional UV light bulbs. They do not emit harmful ultraviolet radiation, which can cause skin damage and eye irritation. Additionally, non-UV light bulbs are more energy-efficient and have a longer lifespan, making them a more cost-effective and sustainable lighting option.
Does energy efficient light bulbs produce less amount of heat than non-energy efficient light bulbs?
Yes, energy efficient light bulbs produce less heat than non-energy efficient ones because they are more effective at converting electricity into light rather than heat. This is due to their design, which uses technology such as LEDs or fluorescent tubes to generate light more efficiently.
Is a light bulb symmetrical?
Most light bulbs are symmetrical because it is easier to manufacture symmetrical objects, and because the light from a symmetrical bulb is emitted in a symmetrical pattern. However, light bulbs do not have to be symmetrical and some non-symmetrical bulbs are made for special purposes. Generally, it is only symmetrical across only one axis. If you divide from globe to base in the direct center, the other half should be the same.
What are light sources and non light sources?
The sources that can give out their own light are "Light Sources" and the same opposite the sources which can not give out their own light are know as Non Light Sources .
Indicate whether the following statement is True or False Light bulbs are non-directional devices?
True; the light shines outward in all directions.
Why the insects go to your house at night?
Because they are attracted to the lights at your house. You can buy non-attracting light bulbs if you want.
Are actinic bulbs good for non-aquatic plant growth?
yes. Actinic light give off a large amount of blue light which is needed for vegetative growth.
Why are light fixtures made of non combustible material?
Because traditional incandescent light bulbs generate significant heat that could cause flammable materials to ignite.
What is the difference between fluorescent and phosphorescent lights bulbs?
Fluoresent light bulbs are run using electricity.. phosphorescentlight are not,, they have particles inside that absorb from light sources of any kind and store it away to be used , that's why they are not glowing all the time.
Which non metal is used in fluorescent bulbs in display advertisements?
Phosphor is a non-metal that is commonly used in fluorescent bulbs in displays and advertisements. Phosphor coatings on the interior of the bulb react with the UV light emitted by the gas inside the bulb, producing visible light.
