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teacher`s notes
teacher`s notes

... If the light is really intense like a laser pointer, some may get through. Slide 5 and 6 4) How are polarizing filters different from regular filters? This is a good question for whiteboards. Regular filters do not depend on orientation. Two filters will absorb twice as much light as one. They do no ...
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... A) SiCl4 B) BrCl C) PCl3 D) Cl2O E) CaCl2 32. The simplest formula for an oxide of nitrogen that is 36.8 percent nitrogen by mass is A) N2O B) NO C) NO2 D) N2O3 E) N2O5 33. Compounds of which of the following functional groups are noted for their pleasant odors and flavors? A) alcohol B) amine C) or ...
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... model of the PetDetSim simulation tool used for modeling PET detector modules. I looked for the optical key parameters and their correct incorporation to get a reliable model within the limits of the given simulation environment. My aim was to measure the necessary optical parameters, within this to ...
Chromatic acclimation and population dynamics of green sulfur
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... are both dynamically regulated, which, in turn, allows the bacteria to adjust to their specific environments. On the timescales comparable to the population doubling time, the regulation in the LHC structure occurs at the epigenetic level (4) and is considered as an acclimation. Photosynthetic micro ...
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... upon a group of three polarizing sheets which are arranged so that the transmission axis of each sheet is rotated by θ = 45° | 30° | 60° with respect to the preceding sheet starting from the vertical polarizer as shown in the figure. What fraction of the incident intensity is transmitted? Answer: 0. ...
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... Molar mass of air is 29 g.mol-1. I- PCl 5 Is an Unstable Compound At 100 ºC and above, gaseous phosphorous pentachloride decomposes according to the following ...
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... uniquely designed metamaterials and conformal transformation of the electromagnetic (EM) space, molding the flow of light at the deep-subwavelength scale becomes possible. Ray optics is a powerful tool for designing and analyzing optical systems by tracing the ray trajectories in the medium accordin ...
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Ultraviolet–visible spectroscopy



Ultraviolet–visible spectroscopy or ultraviolet-visible spectrophotometry (UV-Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet-visible spectral region. This means it uses light in the visible and adjacent (near-UV and near-infrared [NIR]) ranges. The absorption or reflectance in the visible range directly affects the perceived color of the chemicals involved. In this region of the electromagnetic spectrum, molecules undergo electronic transitions. This technique is complementary to fluorescence spectroscopy, in that fluorescence deals with transitions from the excited state to the ground state, while absorption measures transitions from the ground state to the excited state.
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