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seperates and transmit a narrow portion of light of particular wavelength
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∙ 11y ago
Wiki User
∙ 13y agoselecting a desired wave length
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Why must the slit width of a prism monochromator be varied to provide constant effective bandwidths but a nearly constant slit width provides cnstant bandwidth with a grating monochromator?
Prisms and gratings have different dispersive properties. Grating has a linear dispersion of wavelengths meaning the band on the focal plane varies linearly with the wavelength. Prisms are not linear, the shorter the wavelength the greater the dispersion. Thus, when a spectrum is being scanned, the dispersive device needs to rotates different amounts depending on whether it is prism or grating to focus light on the exit slit. If its grating, the slit width will need to be varied minimally; if it is a prism, the slit width will need larger changes as the dispersion gets greater.
Why Raman intensity is measured in arbitrary units?
because thee is no proper intensity of incident radiation and there is cotinuously changing the intensity of incident radiation. ofcourse there is one colour at one time but at next time the light of next colour is allow to fall on the sample may by monochromator. (UOG students)
What are the properties of life and their purpose?
i am the purpose
What is the purpose of peticides?
The purpose of pesticides is to kill pests.
What is the purpose of the haber process?
purpose of the haber process
What is the difference between monochromator and polychromator?
Unlike a monochromator, polychromators outputs multiple beams over a range of wavelengths simultaneously.
What are the different parts of spectrometer?
The basic parts of a spectrophotometer are a light source, a holder for the sample, a diffraction grating in a monochromator or a prism to separate the different wavelengths of light, and a detector.
What are basic features of spectrometers?
The basic parts of a spectrophotometer are a light source, a holder for the sample, a diffraction grating in a monochromator or a prism to separate the different wavelengths of light, and a detector.
Why must the slit width of a prism monochromator be varied to provide constant effective bandwidths but a nearly constant slit width provides cnstant bandwidth with a grating monochromator?
Prisms and gratings have different dispersive properties. Grating has a linear dispersion of wavelengths meaning the band on the focal plane varies linearly with the wavelength. Prisms are not linear, the shorter the wavelength the greater the dispersion. Thus, when a spectrum is being scanned, the dispersive device needs to rotates different amounts depending on whether it is prism or grating to focus light on the exit slit. If its grating, the slit width will need to be varied minimally; if it is a prism, the slit width will need larger changes as the dispersion gets greater.
Why Raman intensity is measured in arbitrary units?
because thee is no proper intensity of incident radiation and there is cotinuously changing the intensity of incident radiation. ofcourse there is one colour at one time but at next time the light of next colour is allow to fall on the sample may by monochromator. (UOG students)
Why do quantitative and qualitative analyses require a different monochromator slit width?
In quantitative analyses, we use wider slit width to let the slit more brightness, to improve the sensitive of detection. In qualitative analysis, we use narrow slit to get higher resolution, avoid other light influence and to detect the specific light wavelength.
What is the purpose of edsa revolution?
the purpose of this is to have a purpose
Use the word purpose in a sentence?
What is the purpose of this sentence?I did not do that on purpose.
What is a best sentence for purpose?
Opinions vary as to the purpose of the best sentence for the use of the word 'purpose'. This serves no purpose. I reached out to the porpoise on purpose.
What is the difference between the general purpose and the specific purpose of a speech?
The general purpose is the overall intent of your speech. The specific purpose is a goal stated in a complete sentence. Overall, the general purpose and specific purpose are different because they both mean different things. The specific purpose is just really a goal stated in your sentence and the general purpose is just the purpose of your speech.GENERAL PURPOSE: purpose of your speech.SPECIFIC PURPOSE: the goal or the main idea in your speech.
What is a by-purpose?
A by-purpose is an indirect or incidental purpose for an object or an action.
What is by purpose?
A by-purpose is an indirect or incidental purpose for an object or an action.
