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They produce light by using Mercury vapor :D
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Answer #2:
Some (not many) pass electric current through mercury vapor, causing it to glow violet.
Some pass electric current through sodium vapor, causing it to glow yellow.
Some pass electric current through a thin wire, causing it to heat and glow ...
a process is identical to that in every incandescent light bulb in your house.
Some burn natural gas.
What else can I help you with?
What is one way in which you can identify the elements that are used in various street lights?
By the colour of the light that they emit. Sodium vapour lamps produce yellow/orange light while Mercury vapour lamps produce white light.
What are cfl lights?
CFL lights are compact fluorescent lights that use a fluorescent tube to produce light. They are more energy-efficient than traditional incandescent bulbs and last longer. CFL lights are a popular choice for residential and commercial lighting.
Why cant you produce black light?
Black light is produced using ultraviolet (UV) lights. These lights emit UV radiation, which causes certain materials to glow or fluoresce in a way that appears to be black light. Other colors of light don't have the same effect on these materials, which is why they cannot produce black light.
Why sodium vapours lamps are used as street light instead of simple white tube lights?
Sodium lighting is more efficient to run than white lights, and it gives an even light with less glare.
How many kva to run four street lights?
To determine the required kVA to run four street lights, you will need to know the power rating of each street light. Once you have that information, you can add up the power ratings of the four street lights to calculate the total power consumption in watts. Finally, divide the total wattage by 1000 to convert it to kilovolt-amperes (kVA).
What is one way in which you can identify the elements that are used in various street lights?
By the colour of the light that they emit. Sodium vapour lamps produce yellow/orange light while Mercury vapour lamps produce white light.
How do you florescent lights produce light?
by making light
How much would solar street lights cost compared to regular street lights?
According to Enertia Engineering Ltd., a Enertia Solar Street Light costs 75$, while a traditional solar street light costs 170$. Compared to these solar lights, a regular street light costs 550$.
Are street light luminous or illuminated?
Street lights are illuminated. They emit light to illuminate the surrounding area.
Why photocells used in automatic street light?
Photocells are used in automatic street lights to detect ambient light levels. When it gets dark, the photocell detects the decrease in light and triggers the street light to turn on. This helps in energy conservation by ensuring that the street lights are only on when needed.
What uses a light dependent resisitor?
Usualy nigh lights or cretin street lights :)
What are luminous lights?
it is not capable to produce light but it is capable by reflecting light
What are the differences between fluorescent light and incandescent light?
Fluorescent lights use gas and electricity to produce light, while incandescent lights use a filament that heats up to produce light. Fluorescent lights are more energy-efficient and last longer than incandescent lights.
What are some artificial sources of light?
TV, street lights, House lights, computer screen
What are the differences between fluorescent light and incandescent light sources?
Fluorescent lights use gas and phosphor coating to produce light, while incandescent lights use a filament that heats up to produce light. Fluorescent lights are more energy-efficient and last longer than incandescent lights, but incandescent lights have a warmer color temperature.
How do the street lights come on when it gets dark and going off when light?
Street lights typically operate using a light-sensitive device called a photocell or photoresistor. When it gets dark, the photocell detects the drop in ambient light levels and sends a signal to turn the street lights on. Conversely, when dawn breaks and light levels increase, the photocell signals the lights to turn off. This automatic system ensures that the lights operate efficiently, illuminating streets only when needed.
Is street light reflective object?
Street lights themselves are not typically reflective objects; rather, they emit light to illuminate the surrounding area. Reflective objects such as road signs or pavement markings are designed to reflect light, including that from street lights, to increase visibility for drivers and pedestrians.
