In intrinsic semiconductor the increase in conductivity per degree increase in temperature is about ?->(Show Answer!)

1. In intrinsic semiconductor the increase in conductivity per degree increase in temperature is about

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MCQ-> Study the following information carefully and answer the question given below: Following are the conditions for selecting Senior Manager-General Banking in a bank: The candidate must (i) have secured at least 60 per cent marks in std XII. (ii)have secured at least 55 per cent marks in Graduation in any discipline (iii)have secured at least 60 per cent marks in Postgraduate degree/diploma in Management/Economics/statistics (iv)be at least 25 years and not more than 35 years as on 01-03-2010 (v)have post qualification work experience of at least 2 years as General Banking Officer in a bank (vi)have secured at least 40 per cent marks in the Personal interview In the case of a candidate who satisfies all the above conditions except (a)at (iii)above but has secured at least 60 per cent marks in CA or ICWA the case is to be referred to VP-Recruitment (b)at (vi)above but has secured at least 65 per cent marks in the written examination and at least 35 per cent marks in the personal interview the case is to be referred to president-Recruitment In each question below are given details of the one candidate You have to take one of the following course of action based on the information provided and the conditions and sub conditions given above and mark the number of that course of action as your answer You are not to assume anything other than the information provided in each question All these are given to you as on 01-03-2010Kesav Vora was born on 8th November 1978.He has secured 65 per cent marks in std XII and 60 per cent marks in Graduation He has secured 58 per cent marks in MA Economics and 60 per cent in ICWA He has been working in a bank as a generalist officer for the past two years after completing his education he has also secured 50 per cent marks in the written examination and 45 per cent marks in the personal interview
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MCQ-> The passage below is accompanied by a set of six questions. Choose the best answer to each question. During the frigid season... it's often necessary to nestle under a blanket to try to stay warm. The temperature difference between the blanket and the air outside is so palpable that we often have trouble leaving our warm refuge. Many plants and animals similarly hunker down, relying on snow cover for safety from winter's harsh conditions. The small area between the snowpack and the ground, called the subnivium... might be the most important ecosystem that you have never heard of.The subnivium is so well-insulated and stable that its temperature holds steady at around 32 degree Fahrenheit (0 degree Celsius). Although that might still sound cold, a constant temperature of 32 degree Fahrenheit can often be 30 to 40 degrees warmer than the air temperature during the peak of winter. Because of this large temperature difference, a wide variety of species...depend on the subnivium for winter protection.For many organisms living in temperate and Arctic regions, the difference between being under the snow or outside it is a matter of life and death. Consequently, disruptions to the subnivium brought about by climate change will affect everything from population dynamics to nutrient cycling through the ecosystem.The formation and stability of the subnivium requires more than a few flurries. Winter ecologists have suggested that eight inches of snow is necessary to develop a stable layer of insulation. Depth is not the only factor, however. More accurately, the stability of the subnivium depends on the interaction between snow depth and snow density. Imagine being under a stack of blankets that are all flattened and pressed together. When compressed, the blankets essentially form one compacted layer. In contrast, when they are lightly placed on top of one another, their insulative capacity increases because the air pockets between them trap heat. Greater depths of low-density snow are therefore better at insulating the ground.Both depth and density of snow are sensitive to temperature. Scientists are now beginning to explore how climate change will affect the subnivium, as well as the species that depend on it. At first glance, warmer winters seem beneficial for species that have difficulty surviving subzero temperatures; however, as with most ecological phenomena, the consequences are not so straightforward. Research has shown that the snow season (the period when snow is more likely than rain) has become shorter since l970. When rain falls on snow, it increases the density of the snow and reduces its insulative capacity. Therefore, even though winters are expected to become warmer overall from future climate change, the subnivium will tend to become colder and more variable with less protection from the above-ground temperatures.The effects of a colder subnivium are complex... For example, shrubs such as crowberry and alpine azalea that grow along the forest floor tend to block the wind and so retain higher depths of snow around them. This captured snow helps to keep soils insulated and in turn increases plant decomposition and nutrient release. In field experiments, researchers removed a portion. of the snow cover to investigate the importance of the subnivium's insulation. They found that soil frost in the snow-free area resulted in damage to plant roots and sometimes even the death of the plant.The purpose of this passage is to
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