when a beam of white light coming from a slit passes through a prism it splits up into seven colors which is obtained on screen.
in practice following conditions should be satisfied to obtain a pure spectrum-
- the slit should be narrow-then only a few rays will fall on prism and overlapping of colors will be reduced.
- the rays falling on the prism should be parallel-all the rays will be incident on the prism at the same angle and rays of same color will emerge parallel to one another which maybe focused at one point.
-the rays emerging from the prism should be focused on the screen by an achromatic convex lens
-the prism should be placed in minimum deviation position w.r.t. the mean ray and the refracting edge of the prism should be parallel to the slit-focusing of different colors would be the sharpest.
all these requirements are fulfilled in a spectrometer.
The spectrum is impure, that is, the bands of light will merge together, with no clearly defined boundary.
The pure spectrum of light refers to light that contains a single wavelength or frequency, without any other wavelengths mixed in. This type of light appears as a distinct color, such as red, green, or blue, and is often produced by sources like lasers or fluorescence. Pure spectrum light is used in various scientific and industrial applications, such as spectroscopy and optical communications.
A monochromatic spectrum contains only specific wavelengths of light, typically consisting of a single pure color. This type of spectrum is characterized by a narrow band of wavelengths with little to no variation in frequency or energy.
An absorption spectrum is obtained by passing light through a material and measuring the amount of light absorbed at each wavelength. The absorption spectrum shows the absorption of light by the material at different wavelengths, providing information on the electronic structure and composition of the material. This technique is commonly used in various fields such as chemistry, physics, and biology to study the properties of different substances.
The Am-241 gamma spectrum can provide information about the energy levels and intensity of gamma radiation emitted by Americium-241, which can help identify the presence and concentration of this radioactive isotope in a sample.
The spectrum is impure, that is, the bands of light will merge together, with no clearly defined boundary.
Americium can be obtained as a pure element (more exactly isotope).
a spectrum can be obtained by a prism.as white light passes through one side the rainbow colors come through the other side
filament of bulb
Pure salt is obtained by repeated processes of crystallization/recrystallization.
buy gold bullion check if it 99.99% pure that is as pure as it gets
Pure spectrum refers to a light source that emits radiation over a narrow range of wavelengths, without any additional colors or frequencies present. This can be ideal for certain scientific experiments, such as spectroscopy, where precise wavelengths of light are needed for analyzing materials. Pure spectrum sources can include lasers or specially designed filters to achieve the narrow wavelength range.
All the elements from the periodic table can be obtained as pure elements.
The spectrum obtained for a fluorescent light is unique in that it produces a discrete line spectrum with distinct peaks at specific wavelengths, rather than a continuous spectrum. This is due to the combination of the phosphor coating in the tube and the mercury vapor emitting specific wavelengths of light when excited.
Sodium can be obtained from sodium chloride by making a solution of it and then elctrolysing it. The pure sodium metal can be obtained on electrolysis.
elements are obtained in its pure form by the process of distillation or fractional distillation. In this process the elements are purified using their boiling points,after this the metal are purified in the factories.
Pure plutonium is obtained as a result of the reaction of PuF4 with calcium, barium or lithium.