What is the difference between line source and continuous source?

What is the difference between line source and continuous source?

For example, the emission spectrum for a green LED provides continuous emission over a wavelength range of approximately 530–640 nm. A line source, on the other hand, emits radiation at discrete wavelengths.

What is line source of radiation?

A line source, as opposed to a point source, area source, or volume source, is a source of air, noise, water contamination or electromagnetic radiation that emanates from a linear (one-dimensional) geometry.

What is a continuous source?

135-136) Continuous source – An epidemic in which the causal agent (e.g. polluted drinking water, spoiled food) is infecting people who come into contact with it, over an extended period of time. ( Giesecke, pp. 135-136)

What is a line source in AAS?

Line sources are lamps that emit very narrow bands of radiation, but this source of radiation is not as pure as radiation from a laser. The most common line source radiation generator used in AAS is the hollow cathode lamp (HCL).

Which among the following is an example of continuous radiation source of light?

The Sun, for example, not only emits the continuous spectrum of radiation that originates from its hot surface but also emits discrete radiation quanta hν that are characteristic of its atomic composition.

What is the role of a hollow cathode lamp HCL?

A hollow-cathode lamp (HCL) is type of cold cathode lamp used in physics and chemistry as a spectral line source (e.g. for atomic absorption spectrometers) and as a frequency tuner for light sources such as lasers. The buffer gas ions will then be accelerated into the cathode, sputtering off atoms from the cathode.

What is point source and line source?

If a sound source produces spherical spreading of sound in all directions, it is a point source. If the sound source produces cylindrical spreading of sound as shown in this diagram, such as stream of motor vehicles on a busy road at a distance, it may be considered as a line source.

What is continuous source of light?

For years, photographers have used photoflood, tungsten, quartz, and all kinds of continuous light sources that fall under the general heading of “hot lights.” These light sources have many advantages over flash: They can be inexpensive; they let you see the light as captured, allowing you to use your camera’s in- …

Which energy source is not continuous energy source?

All fossil fuels are nonrenewable, but not all nonrenewable energy sources are fossil fuels, coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the buried remains of plants and animals that lived millions of years ago.

What is continuum emission?

A spectral continuum occurs when the interactions of a large number of atoms, ions or molecules spread out all of the discrete emission lines of an object, so they can no longer be distinguished. The spectrum of a G5IV star showing absorption line features below the level of the star’s blackbody continuum spectrum.

What is the difference between a continuous spectrum and line spectrum?

The key difference between continuous spectrum and line spectrum is that the continuous spectrum contains all the wavelengths in a given range whereas the line spectrum contains only a few wavelengths.