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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WORDS - 1‚829 A personalised induction will always be more effective In this essay I will be looking at the benefits of creating a personalised induction as well as looking at certain circumstances to support an argument against it. I will be discussing the influence and application of the different modalities when creating an induction as well as briefly exploring how the brain uses information‚ and discussing whether or not a personalised induction is the most effective method to use
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is greater than others. And we frequently see that cancer cells will "take more hits" and die if irradiated than many kinds of "regular" cells will. Radiation (either electromagnetic or particulate) causes ionization in tissue when it is of sufficient energy. A microwave oven will not cause this‚ but higher energy electromagnetic waves will cause it. So will particulate radiation. The chemical bonds that hold DNA together can be broken by ionizing radiation‚ and this kind of damage is difficult
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1. This question is about lasers. (a) With reference to the light waves emitted by a laser‚ state what is meant by the terms (i) monochromatic. ........................................................................................................................... ........................................................................................................................... (1) (ii) coherent. ...............................................................................
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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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pigment the changes color when exposed to ultraviolet light radiation. The dye in the UV bead is photo chromic that changes color when exposed to UV‚ which is chemical reaction. Review Literature UV‚ or ultraviolet‚ light is an invisible form of electromagnetic radiation that has a shorter wavelength than the light humans can see. It carries more energy than visible light and can sometimes break bonds between atoms and molecules‚ altering the chemistry of materials exposed to it. Ultraviolet-sensitive
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of colors. While taking the temperature of the visual colors‚ he noticed when he placed the thermometer bulb just beyond the red colors the temperature would raise‚ this was the birth of thermal radiation. There are types of radiations in the electromagnetic spectrum‚ a lot of which we can not see. The little portion that we can see is called light. This spectrum is identified by either short or long wavelength‚ infrared is non-ionizing radiation found in the long wavelength between microwaves and
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1. Define land resource surveying methodology. Identify the two approaches in land resource surveying methodology. 2. Discuss the contributions of Aristotle‚ Louise Deguerre‚ Argo‚ Loussedat and Deville in enriching the science of topographic surveying. 3. The atmosphere influences EMR in two ways. Discuss them. 1. According to Professor Masaka (2011) Land resource survey methodology can be defined as the starting point for any natural resource management policy has to be an inventory of
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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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