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What is the terminology HPMV for a lamp?
HPMV stands for High Pressure Mercury Vapor, which refers to a type of lamp that produces light by exciting mercury vapor with electricity. These lamps are often used in outdoor lighting applications due to their high efficiency and long lifespan.
What is the type of gas in an arc lamp?
The type of gas commonly used in an arc lamp is typically a noble gas such as xenon or mercury vapor. These gases are chosen for their ability to produce a bright and steady light when an electric current is passed through them in the lamp.
Which is the filament used in flouresent lamp?
The filament used in a fluorescent lamp is made of a coated tungsten coil. When electricity passes through the coil, it excites the mercury vapor inside the lamp, producing ultraviolet light that then interacts with the phosphor coating on the inside of the lamp to produce visible light.
Why is mercury vapor use in light bulb?
Mercury vapor is used in fluorescent and other types of gas-discharge lamps because it produces ultraviolet light when electrified, which then excites phosphor coatings on the inside of the lamp to produce visible light. This process is much more energy-efficient than traditional incandescent bulbs, making mercury vapor a common choice for lighting applications.
Do mercury lamps contain mercury?
Yes, mercury lamps contain small amounts of elemental mercury vapor that is used to produce light when an electric current passes through it. However, advancements in lighting technology are reducing the use of mercury in lamps to minimize environmental impact.
Who invented the real fluorescent lamp?
The real fluorescent lamp was invented by the German-American engineer and inventor, Peter Cooper Hewitt, in 1901. His lamp used an electric arc in mercury vapor to produce a blue-green light, which was an early precursor to modern fluorescent lighting.
Can you replace a 125w mercury vapour lamp with a 80w without changing control gear?
No, you cannot replace a 125w mercury vapor lamp with an 80w lamp without changing the control gear. Control gear needs to match the wattage of the lamp to ensure proper operation and to avoid any damage or safety issues. It is essential to use the correct wattage lamp specified for the control gear being used.
What liquid metal used to be in thermometers?
Mercury. The metal gives off poisonous vapours - and has largely been replaced by alcohol.
What gase use in flurocent lamp?
Fluorescent lamps use a mixture of gases, including mercury vapor and argon, to produce light. When electricity passes through the gases, ultraviolet light is produced, which then interacts with the phosphor coating inside the lamp to create visible light.
What element was used during the California gold rush extract gold from mine deposits?
Mercury was used to dissolve gold from the ore. The mercury/gold mixture was then heated to drive off the mercury leaving the gold. The mercury vapours were detrimental to the environment and the jhealth of the prospectors
What will happen if mercury lamp is used instead of sodium lamp in plane diffraction grating exp?
Using a mercury lamp instead of a sodium lamp in a plane diffraction grating experiment might result in a different wavelength of light being emitted. This would affect the interference pattern observed on the screen, leading to a shift in the position of the fringes. Additionally, the intensity of the light and the overall visibility of the interference pattern might also be altered.
What kind of laser is used in diffraction grating experiment?
laser is not used in that experiment. that was mercury lamp which is used for that exp.
