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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 some items that have a light bulb in them?
lamps
What happened before the light bulb?
Candles. kerosine lamps, gas lamps were popular in cities
How many volts lamps use?
it varys from light bulb to light bulb.
Can calcium carbide be an alternative to oil lamps?
Calcium carbide lamps have been used (historically in mines) to create light by immersing calcium carbide in water to produce acytelene gas, which burns and creates light. Although they work as lamps, the gas produced by them makes them less safe than oil lamps, and as such they were usually only used in industrial lighting rather than in homes. Electrical lighting is usually safer than either oil or carbide lamps because there is less danger of fire.
Why is the street light yellow not white?
They are yellow because they are sodium lamps, using sodium vapor. They are very efficient in terms of visible light output per watt.
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 color is produced when green and blue light are mixed?
yellow
What are two helpful effects of UV light?
Ultraviolet light produced by Ultraviolet lamps is used to kill bacteria on food and surgical tools.
Which metal vapours give yellow street light also used in fog lamps?
I think it's sodium.
Which colour is produced by adding together yellow and cyan?
light green
What are the different types of light?
Incandescent Lamps Light Emitting Diode Neon Lamps Fluorescent Tubes Compact Fluorescent Lamps Halogen Lamps Metal Halide Lamps High Intensity Discharge Lamps Low Pressure Sodium Lamps High Pressure Sodium Lamps
Is sodium lamp monochromatic?
No, sodium lamps are not monochromatic. They emit a broad spectrum of light, with a characteristic yellow-orange color due to the dominant emission of spectral lines in the yellow region.
What colour is produced by mixing red and green light?
It is yellow-- mixing red and green PAINT produces brown; mixing red and green LIGHT produces yellow.
When a strontium compound is heated in a flame red light is produced When a barium compound is heated in a flame yellow-green light is produced Explain why these colors are emitted?
Yes
How can yellow be produced on a screen if only red and green light are available?
Red light plus green light equals yellow light. This is why you get yellow on a screen. Light colours mixed give you different colours to paint colours. Light Primary colours are red, blue and green but Paint Primary colours are red, blue and yellow.
What did the inuit use for light to read in an igloo?
The Inuit used seal oil lamps as a source of light to read inside their igloos. These lamps provided a steady flame that produced both heat and light, making them essential for daily activities during long Arctic nights.
