using visible light wavelengths obstructed by black paper‚ and red‚ blue‚ and green translucent filters. I. Abstract Photosynthesis is a process in which plants use light‚ water‚ and carbon dioxide to produce sugars‚ water and oxygen. Chlorophyll a and chlorophyll b‚ in the chloroplasts of a leaf‚ are responsible for absorbing wavelengths of light for use in photosynthesis with red and blue wavelengths being optimal. Testing for the most productive wavelength of light was done using
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Wavelength‚ frequency‚ and amplitude and energy. As a person in science‚ i should know the order of colours in the visible spectrum and the span of visible wavelengths. Question: if light is a .. Answer: max planck proposed that e.m radiation comes in units of defined energy rather than in any arbitrary quantities. Planck called it quantum The Photoelectric Effect Planck’s theories were used to explain a number of observations that had been troubling scientists. Einstein extended
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colour sometimes seen in the smoke emitted by motorcycles‚ in particular two-stroke machines where the burnt engine oil provides the particles. Under the Tyndall effect‚ the longer-wavelength light is more transmitted while the shorter-wavelength light is more reflected via scattering. An analogy to this wavelength dependency is that longwave electromagnetic waves such as radio waves are able to pass through the walls of buildings‚ while shortwave electromagnetic waves such as light waves are stopped
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equilibria. 0.3M concentrations of nickel sulfate hexahydrate and ethylenediamene are mixed at certain stoichiometric ratios of 0.3‚ 0.4‚ 0.5‚ 0.6‚ 0.7‚ 0.8 and 0.9 to form several complexes. Using the UV-Vis Spectrometer‚ the absorbances are taken at wavelengths 530‚ 545‚ 578‚ 622 and 640 nm due to the emergence of several complex compositions. The values of corrected absorbances and the mole fraction of en (X) are plotted to obtain a curve. From these curves‚ an intersection from the 2 trend lines are
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Lab 5 The Diffraction Grating Chinua McDonald Objective: To measure the wavelength of light with a diffraction grating. Theory: The two types of diffraction gratings are the transmission and reflection gratings. They are made by ruling on a piece of glass or metal a number of evenly spaced lines with a fine diamond point. Diffraction phenomena can be analyzed in terms of Huygens’ principle‚ according to which every point on the wave front of a wave should be considered as a source
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Lab Report 2 Name: Waqas Kampulvi Frequency & wave length Experiment Aim: The wavelength and frequency of light are very closely related‚ our aim for this experiment is to determine the relationship between wavelength and frequency and the impact or change in the numbers as a result. Apparatus: Loud Speaker Signal Generator Ruler Microphone Audio Analyzer Plastic Tube Supporting Research: All sound waves which are travelling through the air are in fact longitudinal waves (running lengthwise
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the stone. For case II‚ energy is transferred to the cork through water waves. 6 = 1.6667 = 1.67 m s1 (b) By v = f‚ from what starts the wave‚ e.g. a stone. Wavelength = Practice 5.2 (p. 21) 1 C 2 C 3 A 4 D 5 C 6 C 7 B 8 (a) C 13 (c) v 1.6667 = = 0.833 m f 2 12 =4m 3 12 (b) Wave speed = = 6 m s1 2 (a) Wavelength = (c) By v = f‚ frequency = v 6 = = 1.5 Hz λ 4 Practice 5.3 (p. 29) (b) A 10 the wave speed decreases. distance travelled (a) Wave speed = time taken 5 =
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the same speed through a vacum .. the waves can be orderd by wave length remebered that waves with the shortest wave lengths have the highest frequency and the most energy and the waves with the lowest wavelengths have the longest frequency and the least energy So if we go through the wavelength in size order .. at the begining of the spectrum is GAMMA RADIATION .. gamma radiation cant be seen or felt ‚ but it does pass through soft skin and tissue ‚ and some of it is absorbed by cells. Gamma
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: (1) To determine the wavelength of a sound in resonance air column. (2) To determine the speed of sound in air at room temperature. 3. APPARATUS : Resonance tube (air column) attached with water container and meter stick‚ thermometer‚ function generator‚ speaker. 4. THEORY: : Sound is a longitudinal wave in a medium. If n is the frequency and is the wavelength of the standing wave‚ than the speed
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Physics Lab Report 1. For the wavelength measurement of different colors in the Hydrogen spectrum done in the lab‚ tabulate your data recorded along with the wavelength calculations performed for all colors in the spectrum. (2 points) Line Color a_left (m) a_right (m) a_average (m) sinq nm Red 0.235 0.27 0.2525 0.182145 5.47E-09 Green-Blue 0.17 0.33 0.25 0.180505 5.42E-09 Indigo 0.16 0.35 0.255 0.18378 5.52E-09 Violet? 0 0 0 0 0 To find the wavelength for all of the colors in this lab we used two
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