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Fluorescent lamp low pressure mercury vapour?
A fluorescent lamp refers to a low pressure mercury-vapor gas-discharge lamp that uses fluorescence in order to produce visible light. It is also called a fluorescent tube.
Principle of operation of UV lamp?
A fluorescent lamp or fluorescent tube is a gas-discharge lamp that uses electricity to excite mercury vapor. The excited mercury atoms produce short-wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light. A fluorescent lamp converts electrical power into useful light more efficiently than an incandescent lamp. Lower energy cost typically offsets the higher initial cost of the lamp. The lamp is more costly because it requires a ballast to regulate the flow of current through the lamp.
What will be the resulting spectrum if use a monochromatic light instead of sodium vapour lamp in diffraction grating?
You will observe a series of bright and dark fringes uniformly spaced, of the color of the monochromatic light used.
Can newton's rings exp done by mercury vapour lamp?
Mercury vapour gives out several colours of different wavelength the rings formed with different colours would get overlapped and so chaotic image will be there. Therefore, it will require that you use light filters, yellow, green and blue for the different spectral lines, then you get monochromatic light and not a chaotic image at all.
Is production of light by a lamp physicalnor chemicaln change?
The production of light is chemical change. I is done by someone.
What will happen if mercury lamp is used instead of sodium lamp in plane diffraction grating exp?
for diffraction grating mercury lamp is used not sodium lamp.
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.
Why you use mercury lamp instead of ordinary light or sodium lamp in constant deviation?
we use mercury lamp instead of ordinary lamp because ordinary lamp has many wavelengths when mercury lamp has single wavelength so in constant deviation we use only mercury lamp.
What voltage mercury lamp works?
the supply voltage to a mercury vapour lamp (from the electromagnetic ballast) is 130vac
What type gas use in mercury lamp?
It is a gas discharge lamp which uses mercury in excited states.
Do mercury lamps contain mercury?
yes, there is a coating in the lamp, which contain mercury
What is the terminology HPMV for a lamp?
It is a High Pressure Mercury Vapour lamp.
Can you use a sodium lamp in a mercury ballast?
No you can't. You can use a metal halide lamp of the exact wattage of the original mercury lamp. You cannot vary on wattage at all.
What happens if you use a mercury source instead of sodium vapour lamp in diffraction grating experiment?
sodium vapour lamps produce much higher light output (about 90 lumens/watt) they cannot be used in lighting applications where colour-rendering property is very crucial. This is because most of the light emitted from a sodium vapour lamp is concentrated in the yellow part of the visible spectrum (around 580-590 nm) On the other hand, a mercury vapour lamp is quite suitable for lighting applications. This is because, the mercury vapour lamp can feed almost the entire visible region (380-780 nm) of the human visual system.
Is the mercury lamp consisting mercury element?
Yes, but in minute amount
What is the type of gas in an arc lamp?
A combination of neon, argon, xenon, krypton, sodium, metal halide, and mercury. The common fluorescent lamp is a low pressure mercury arc lamp.
What is inside a fluorescent lamp that is toxic to humans?
Mercury
