the speed of gamma rays‚ when both speeds are measured in a vacuum? 19. Which color of visible light has the shortest wavelength? 20. How are the frequency and wavelength of light related? (what equation(s))? 21. What is the wavelength of an electromagnetic wave that travels at 3× 108 m/s and has a frequency of 80 MHz? (1 MHz= 1‚000‚000 Hz)? 22. Emission of light from an atom occurs when an electron does what? 23. As changes in energy levels of electrons increase‚ the frequencies of atomic line
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indigo‚ violet). If I tell you that sunlight passed through a prism will separate into colors by bending the red light the least‚ tell me what color of the rainbow is the most energetic color. Ans: Violet is the most energetic color on the spectrum because it has a shortest wavelength‚ highest frequency and greatest ability to bend after passing through the prism. 3. When the copper solution was heated in the flame‚ you saw a bluish green color. Explain how you might experimentally show
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What is the definition of autism spectrum disorder? Autism spectrum disorder is a general term for the complex neurological diseases that affect brain development. The common characteristics of the disease are difficulties in social interactions‚ speech communication and repetitive sounds and movements. In May of 2013‚ the DSM-5 diagnostic manual placed all autism disorders under one umbrella known as ASD or autism spectrum disorders. This merged all of the sub-types like Asperger syndrome‚ autistic
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Submit your completed lab report to the Lab: Photosynthesis Lab assignment link for grading. For information on how this assignment will be graded‚ please visit the Course Information sectionChlorophyll and Accessory Pigments A pigment is any substance that absorbs light. The color we see comes from the wavelengths of light that reflect. Chlorophyll‚ the green pigment common to all photosynthetic cells‚ absorbs all wavelengths of visible light except green. The green reflects back to our eyes
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hertzian dipole. 3. Define antenna gain. 4. What are the two types of radiation pattern? 5. State reciprocity principle. 6. Define antenna temperature. PART – B 1. Derive the expression for calculation of electromagnetic field due to an alternating current element. 2. Explain how the solutions to wave equations are arrived? 3. (i)Derive the relationship between directivity & effective aperture. (ii)State and prove reciprocity principle with
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The Absorption Spectrum of Cobalt(II) Chloride Thang Dinh Lab partner: Alex Yang CHM 151 – 102 11/17/2014 Introduction: Many compounds absorb a certain spectrum of visible light. Since Beer’s Law describe the relationship between molar absorptivity and concentration‚ one could use his equation A = kc to find the unknown concentration by the known absorptivity. The graph of absorption spectrum is represented by a linear regression. From the graph‚ one could deduct that as the concentration decreases
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A parabolic antenna for Erdfunkstelle Raisting‚ based in Raisting‚ Bavaria‚ Germany. To direct microwaves in narrow beams for point-to-point communication links or radiolocation (radar)‚ a parabolic antenna is usually used. This is an antenna that uses a parabolic reflector to direct the microwaves. To achieve narrow beamwidths‚ the reflector must be much larger than the wavelength of the radio waves. The relatively short wavelength of microwaves allows reasonably sized dishes to exhibit the desired
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Practical 3 Absorption Spectra and the Beer-Lambert Law INTRODUCTION Electromagnetic radiation can be described in terms of frequency (V) and wavelength (λ). Absorbance is the capacity of a substance to absorb radiation and transmittance (the fraction radiation at a specified wavelength that passes through a sample) is physical properties that all molecules have. The purpose of experiment one was to find the maximum absorbance (λmax) occurred for both bromophenol blue and methyl orange by
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Saturn‚ Uranus‚ and Neptune c) Jupiter‚ Saturn‚ Uranus‚ Neptune‚ and Pluto d) Venus‚ Earth‚ and Mars e) none of the above combinations 4. From lowest energy to highest energy‚ which of the following correctly orders the different categories of electromagnetic radiation? a) gamma rays‚ X rays‚ visible light‚ ultraviolet‚ infrared‚ radio b) visible light‚ infrared‚ X rays‚ ultraviolet‚ gamma rays‚ radio c) radio‚ infrared‚ visible light‚ ultraviolet‚ X rays‚ gamma rays d) infrared‚ visible light‚ ultraviolet
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burette. 3. 5 ml of soda pop was dropped into a volumetric flask and was diluted with distilled water. 4. Step 3 was repeated for 10 ml‚ 15 ml‚ 20 ml‚ and 25 ml of soda pop. 5. The cuvette was filled with ¾ samples. Measuring the spectrum 1. The spectrophotometer was turned on. 2. The wavelength was set at 600 nm. 3. 0% of transmittance (%T) was adjusted. (Dark current adjusted-by using non-fill cuvette). 4. A cuvette was filled with distilled water and inserted
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