Wavelength

to measure the diameter of the human hair using the knowledge of physics of diffraction and interference and the way light waves travel through a medium. The measurements made in this experiment were done using a ruler, a measuring tape and the wavelength of the laser beam used. The measuring tape was used to measure the distance from the hair to the wall. The ruler was used to measure the distance from the centre of the bright band to the center of the first dark spot which is called the order of

Effect of Concentration on the Intensity of Fluorescence in Turmeric Powder Research Question: What is the effect of concentration on the intensity of fluorescence in turmeric powder? Hypothesis: As the concentration of the turmeric solution increases, the intensity of the fluorescence increases as well. Background Information Luminescence1 can be referred to as a term that encompasses the idea that temperatures involving high levels of heat do not always directly result in light emission.

light. Background Information The electromagnetic spectrum is the range of wavelengths over which electromagnetic radiation extends (Merriam-Webster Dictionary). The visible part of the spectrum is light and we can see colors from blue to red. On the left side of the spectrum is blue where the wavelength is shorter. On the right side of the spectrum is red where the wavelength is much longer than the blue end. These wavelengths are called the visible spectrum and an example of this is a rainbow. For

ESS AS 3.6: The features of distant planets – how do we know? 1 INTRODUCTION Exoplanets, also referred to as extra solar planets, are planets which orbit around stars in planetary systems other than our own Solar System. The first exoplanet that was ever discovered was of PSR B1257+12 A in 1992, since then we have discovered approximately 1932 extra solar planets, 1222 planetary systems and 484 multiple planet systems. A wide range of techniques are used by astronomers to find exoplanets, most of

Abstract This paper examines material based on Beer Lambert’s law and spectrophotometry. It shows what happens between the concentration and absorbance of CoCl2 x 6H20 (Cobalt (II) Chloride Hexahdrate). To detect the wavelength and unidentified solution , the spectrophotometry was employed. After everything, in a proper graph we gathered the the data to demonsrate what relationship absorption and concentration have. Moreover, Spectrophotometer, electromagnetic, lambda max were considered to make

energy into chemical energy. Photosynthesis ultimately produces O2 and glucose. It, like many other biological processes, can be affected by environmental variables. The variable that we altered in the following experiment are intensity, light wavelengths, and pigment types. In order to do this, we conducted three experiments. In the first experiment, we examined the effect of light intensity by placing vials with chloroplasts with DPIP at different light distances in which the results varied. Initially

Lab Report 8 Physical Optics Physics 262-003 Author: A. Coughran Lab Partners: E. Ortiz, H. Barham Date: 5/10/17 Lab Report 8 A. Coughran 5/10/17 Objective: The objective in Lab 8 is to measure wavelength of five emission lines of light and a laser beam through the principle of light interference. Theory: Light passed through a transmission grating is often sent in all directions due to interference. The grating acts as a new wave source and causes the light to travel in

concentration of an unknown dye and preparing an absorption spectrum for a known substance. Introduction During this experiment the main equipment used was a spectrophotometer and a micropipette to achieve relevant results. Selecting a specific wavelength of visible light (390-770nm) on the spectrophotometer, the photons pass through the cuvette and are picked up by a photodetector which calculates the absorbance of the substance which was transferred from the source to the cuvettes using a micropipette

affected when the sound travels through different length pipes. Sounds often produce wavelengths, or the distance between one point to another at the crest of the wave, which carries energy. When that energy is altered or physically changed, the sound will either have a higher or lower frequency. Frequency is the number of cycles per unit of time. Like in a graph of wavelengths, higher frequencies have more wavelengths in a certain amount of time whereas lower frequencies have fewer. Frequency is usually

spectrometer are described below. The spectrometer has a light source that emits white light containing a vast mixture of different wavelengths of electromagnetic radiation. The wavelength of interest is then selected using a monochromator (“mono” meaning one and “chromate” meaning color) and an additional exit slit. The separation of white light into different colors (wavelengths) is known as diffraction. The selected light then reaches the sample and depending on how the light interacts with the chemical