Wavelength

spectrum, which sub-classes the type of energy based on their wavelengths. The higher the wavelengths the higher the energy will be ranked in the seven stages. Next, Electromagnetic Energy is all around us and we are basically waves traveling through space at the speed of light. Therefor Electromagnetic Energy can happen because of an electromagnetic field, forcing an atomic particle to move. Electromagnetic energy gives off wavelengths, which is the distance between…

Theories of Color Vision The visual abilities of human beings are incredibly fascinating. We can view a large range of color from a small choice of wavelengths along the electromagnetic spectrum, 400nm-700nm. Our understanding of this perception of color comes from two major theories Tri-chromatic theory of color vision and opponent-process theory. Both theories have their merits and one actually grew out of the other. The first theory proposed was the tri-chromatic theory. The tri-chromatic…

The purpose for this experiment is to observe the emission of spectra from several atoms including hydrogen and helium. Measuring the wavelengths of these emitted spectra will allow us to calculate energies of emitted photons. It is important to note that we will be using the Bohr model of the atom to denote the orbit numbers from which electrons in the sample are relaxing from in hydrogen. This will be important for the conclusions that we will make based upon the calculations using the data…

measured the absorptivity of a 0.4 M solution of CuSO4 and found the wavelength at which this solution had an absorbance of 1. Next, we measured the absorbance of solutions of CuSO4 with known concentrations at the…

More conjugated compounds absorb higher wavelengths/lower energies because as the wavelength increases the HOMO/LUMO gap (ΔE) decreases which is due to the compression of multiple molecular orbitals (ψ). According to Klein, the Ketchup stain (lycopene) on a shirt and upon application of bleach (NaClO), it breaks lycopene’s conjugation, therefore causing a decrease in conjugation; which directly correlates to the stain no longer being visible to the eye but when illuminating the shirt with…

to correctly identify. The good news is that, for both samples, we were able to accurately determine their concentrations using Beer’s Law, a well-established law that governs the relationship between a solution’s concentration and the amount of wavelength the solution can absorb under standard conditions. Before going any further, though, let me fill you in on some of procedures and methods that were followed during the process. A laboratory experiment was set up, using 5 samples of copper…

cycle which uses that chemical energy to make sugars for food. To perform these processes, plants use organelles called chloroplasts that absorbs light to fuel the plant. These chloroplasts are consisted of different pigments that absorb specific wavelengths of light, with the two most abundant being chlorophyll a and chlorophyll b. This lab consists of two different experiments that relate to the photosynthetic processes in plants. The objective of the first experiment is to demonstrate the…

electrons and holes are allowed to combine to emit a photon of light with energy equal to the difference of energies of the electron and hole. This emitted photon has a characteristic wavelength and frequency associated with this energy. Semiconductor P-N junctions can be engineered to emit photons of desired wavelengths and energies. However, the ability to engineer…

Thermal radiation varies in wavelength from long wavelengths being infrared, to the invisible light spectrum to the shortest ultraviolet rays. The strength and distribution of radiant energy is ruled by the temperature of the emitting surface. The rate at which a body radiates or absorbs thermal…

1. Color Color is a piece of the electromagnetic range and has dependably existed, however Sir Isaac Newton gave the first clarification of shading in 1666. Newton passed slender light emission daylight through a crystal situated in a dim room. Obviously all the noticeable range (red, orange, yellow, green, blue, indigo, and violet) was shown on the white screen. Individuals as of now realized that light went through a crystal would demonstrate a rainbow or noticeable range; however Newton 's…