What are three types of lasers? ?->(Show Answer!)

1. What are three types of lasers?

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MCQ->Six months later, the three realized that the solution offered by the wise man in the previous question wasn't working to the satisfaction of all, because it did not help them find the appropriate value of resources. Therefore, they reverted to status quo ante. After one year, all three of them wanted to construct a house each, on their respective property. Three types of resources-1.Timber, 2.water and 3.stone & sand- were required to build a house. While each had one resource in abundance none of them had all the three in sufficient quantity. They still could not come to an agreement on how to fairly value and use each other's resources to construct the house. They again approached the wise man for advice.The wise man studied the situation carefully and proposed the following actions: 1. The governing body of the United Federation of Islands, of which the island hill is a part, should take ownership of all the three properties and construct houses for the three. 2. Each person should own one third of each of the resources. 3. The three persons should arrive at the value of resources by trading the resources among them. Which of the following is the most appropriate in the best interests of A, B and C?....

MCQ-> Thought the Cold War has ended selective tactics are still continuing for ensuring the military and economic dominance of developed countries Various types of technology denial regimes are still being enforced which are now being mainly targeted against developing countries like India Today we in India encounter twin problems On one side there is a large scale strengthening of our neighbours through supply of arms and clandestine support to their nuclear and missile programmes and on the other side all efforts are being made to weaken our indigenous technology growth through control regimes and dumping of low-tech system accompanied with high commercial pitch in critical areas Growth of indigenous technology and self-reliance are the only answer to the problem Thus in the environment around India the number of missiles and nuclear powers are continuously increasing and destructive weapons continue to pile up around us in spite of arms reduction treaties To understand the implications of various types of warfare that may affect us we need to take a quick look at the evolution of war weaponry and the types of warfare I am highlighting this point for the reason that in less than a century we could see change in the nature of warfare and its effects of society In early years of human history it was mostly direct human warfare During the twentieth century up to about 1990 the warfare was weapon driven The weapons used were guns tanks aircraft ships submarines and the nuclear weapons deployed on land/sea/air and also reconnaissance spacecraft. Proliferation of conventional nuclear and biological weapons was at a peak owing to the competition between the superpowers The next phase in a new form has just started from 1990 onwards The world has graduated into economic warfare.The means used is control of market forces through high technology.The participating nations apart from the USA, are Japan the UK France Germany certain South East Asian countries and a few others The driving force is the generation of wealth with certain types of economic doctrine The urgent issue we need to address collectively as a nation is how do we handle the tactics of economic and military dominance in this new form coming from the backdoor ? Today technology is the main driver of economic development at the national level Therefore we have to develop indigenous technologies to enhance our competitive edge and to generate national wealth in all segments of economy Therefore the need of the hour is arm India with technology.Why do certain countries use selective tactics against developing countries ?
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MCQ-> Read the passage and answer the questions that follow: Passage II Humans are pretty inventive creatures. That might be cause for optimism about the future of global change. We've found solutions to lots of problems in the past. And with a much larger and better-educated population than the world has ever seen — the supply of good ideas can only increase. So innovation will figure out a way to sustainable futures. But what is innovation? The media and companies routinely equate innovation with shiny new gadgets. In the same spirit, politicians charged with managing economies frequently talk as if all innovation is good. The history of almost any technology, however — from farming to applied nuclear physics — reveals a mixture of good and bad. The study of the concept of innovation, and of whether it can be steered, is a relatively recent academic effort. There are three ways that scholars have thought about innovation. The first was basically linear: science begets invention that begets innovation. Physics, for instance, gives us lasers, which give us —eventually — compact discs. Result: Growth! Prosperity! Rising living standards for all! From this perspective, it's assumed that science is the basis for long-term growth, and that innovation largely involves commercialisation of scientific discoveries. There is a role for the state, but only in funding the research. The rest can be left to the private sector. By the 1970s, economists interested in technology and some policy-makers were talking about something more complicated: national systems of innovation competing with each other. Such "systems" included measures to promote transfer of technology out of the lab, especially by building links between centres of discovery and technologists and entrepreneurs. The key failing of these two approaches is that they treat less desirable outcomes of innovation as externalities and are blind to the possibility that they may call for radically different technological priorities. The environmental effects of energy and materials-intensive industries may turn, out to be more destructive than we can handle. Radical system change is a third way to think about innovation. Technological trajectories aren't pre-ordained: Some paths arc chosen at the expense of others. And that's harder because it needs more than incremental change. The near future is about transformation. The more complex historical and social understanding of innovation now emerging leads to a richer concept of infrastructure, as part of a system with social and technical elements interwoven.An emphasis on the new, the experimental, the innovative - and on promoting social and technical solutions to global problems must overcome the sheer inertia of the systems we have already built - and are often still extending. Aiming for transformation leads to another take on creative destruction. It isn't enough to promote innovation as creation, the existing system has to be destabilized as well. System shifts of the radical kind envisaged will call for creation of a new infrastructure. But that won't do the job unless the old systems are deliberately removed on roughly the same time-scale. Achieving that will call for a lot more thought about how to if not destroy the old systems, at least set about dismantling them. From the passage we can conclude that the author believes
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