among other things. By looking at the shape of the spectrum of light emitted by a star‚ we can tell something about its average surface temperature. i) If we observe a star’s spectrum and find that the peak power occurs at the border between red and infrared light‚ what is the approximate surface temperature of the star? (in degrees C) 3767 C ii) If we observe a stars spectrum and find that the peak power occurs at the border between blue and ultraviolet light‚ what is the surface temperature of
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2.9 Erbium Doped Fiber Laser The EDFLs can operate in several wave-length regions‚ ranging from visible to far infrared. The 1.55 region has attracted the most attention because it coincides with the low-loss region of silica fibers used for optical-communications [14]. The erbium absorption line that best matches with available high power pump diodes is in the 980 regime. At this wave-length‚ the absorption cross section of erbium is so low that an excessive amount of fiber would be required for
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means it’s the usage of ultra-light to measure the absorbance of the copper sulpate. The regions of the electromagnetic spectrum immediately adjacent to the high- and low- energy extremes of the visible region are known as the ultraviolet (UV) and infrared (IR) regions respectively. Thus a quantum of UV radiation possesses more energy than one in the visible region whilst the reverse is true for quantum of IR radiation. All spectrophotometric methods depends on the application of two basic laws which
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| Analysis About 30 percent of the sunlight that beams toward Earth is deflected by the outer atmosphere and scattered back into space. The rest reaches the planet’s surface and is reflected upward again as a type of slow-moving energy called infrared radiation. Heat travels due to radiation and hetas up both the thermometers. But the one inside the testtube gets heated more consistently. This happens because there is air trapped inside the testtube which acts as a heat store. As the air molecules
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with an organic base purine derivative‚ such as inosine has great biological significance.1 For instance‚ many cofactors in various enzymatic reactions are both metal ions and nucleosides‚ such as organic base purine derivatives.1 By studying the infrared data for the boinding of insoine to the metal atom‚ the interactions between the purine derivative and metal can be studied. Experimental: All reagents and solvents used were purchased from commercial suppliers. All solvents and reagents used
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The world as a whole currently faces several dramatic problems. Examples of these world problems include terrorism‚ desertification‚ overpopulation‚ deforestation‚ pollution‚ and world hunger. Of all these world problems the two that should currently be focused on are deforestation and pollution. Millions of acres of forests are chopped down by large lumber companies for the means of economic success. The world’s air and water is constantly polluted by dangerous machinery emissions and factorial
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Where the Incision is Located Inframammary incisions are the incisions that are made in the breast’s bottom crease‚ where the chest wall meets the lower protrusion of the breast. You will probably be instructed to wait at least 2 to 4 weeks before getting back to doing upper body exercises if this is the location of your implant. In the meantime‚ you should not lift your hands over your head during recovery. When you minimize the stain on this part of your body‚ it will result in healthier healing
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What exactly is the electromagnetic spectrum? Is a continuous range of wavelengths‚ which includes gamma rays‚ ultraviolet waves and other forms of electromagnetic radiation. How does the issue of scarcity and interference relate to the electromagnetic spectrum? The spectrum is considered scarce because of the limited number of frequencies for operation and two parties cannot broadcast on the same frequency in the spectrum. Interference not only can be caused by broadcasters but by natural phenomenons
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Preparation of Bromotriphenylmethane Abstract The structure of a major component of star anise oil was derived by analyzing its IR spectroscopy melting point of after oxidation and purification. From the evidence obtained‚ it was concluded that the exact structured should be p-methoxybenzoic acid. Introduction The purpose of this experiment is to determine the structure of the major component of star anise oil. It is already known that this component has a molecular formula C10H12O. This
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