1. Identify the wrong statement in the following





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MCQ-> Analyse the following passage and provide appropriate answers for the questions that follow: Each piece, or part, of the whole of nature is always merely an approximation to the complete truth, or the complete truth so far as we know it. In fact, everything we know is only some kind of approximation, because we know that we do not know all the laws as yet. Therefore, things must be learned only to be unlearned again or, more likely, to be corrected. The principal of science, the definition, almost, is the following: The test of all knowledge is experiment. Experiment is the sole judge of scientific “truth.” But what is the source of knowledge? Where do the laws that are to be tested come from? Experiment, itself, helps to produce these laws, in the sense that it gives us hints. But also needed is imagination to create from these laws, in the sense that it gives us hints. But also needed is imagination to create from these hints the great generalizations – to guess at the wonderful, simple, but very strange patterns beneath them all, and then to experiment to check again whether we have made the right guess. This imagining process is so difficult that there is a division of labour in physics: there are theoretical physicists who imagine, deduce, and guess at new laws, but do not experiment; and then there are experimental physicists who experiment, imagine, deduce, and guess. We said that the laws of nature are approximate: that we first find the “wrong” ones, and then we find the “right” ones. Now, how can an experiment be “wrong”? First, in a trivial way: the apparatus can be faulty and you did not notice. But these things are easily fixed and checked back and forth. So without snatching at such minor things, how can the results of an experiment be wrong? Only by being inaccurate. For example, the mass of an object never seems to change; a spinning top has the same weight as a still one. So a “law” was invented: mass is constant, independent of speed. That “law” is now found to be incorrect. Mass is found is to increase with velocity, but appreciable increase requires velocities near that of light. A true law is: if an object moves with a speed of less than one hundred miles a second the mass is constant to within one part in a million. In some such approximate form this is a correct law. So in practice one might think that the new law makes no significant difference. Well, yes and no. For ordinary speeds we can certainly forget it and use the simple constant mass law as a good approximation. But for high speeds we are wrong, and the higher the speed, the wrong we are. Finally, and most interesting, philosophically we are completely wrong with the approximate law. Our entire picture of the world has to be altered even though the mass changes only by a little bit. This is a very peculiar thing about the philosophy, or the ideas, behind the laws. Even a very small effect sometimes requires profound changes to our ideas.Which of the following options is DEFINITLY NOT an approximation to the complete truth?
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MCQ-> Each question below is followed by two statements A and B You are to determine whether the data given in the statement is sufficient for answering the question You should use the data and your knowledge of Mathematics to choose between the possible answer Give answer a)If the statement A alone is sufficient to answer the question but the statement B alone is not sufficient. Give answer b)If the statement B alone is sufficient to answer the question but the statement A alone is not sufficient Give answer c)If both statement A and B together are needed to answer the question Give answer d)If either the statement A alone or statement B alone is sufficient to answer the question Give answer e)If you cannot get the answer from the statement A and B together but need even more dataWhat is the profit earned by selling a watch for Rs 15,675 ? A.The cost price of 5 such watches is equal to the selling price of 4 such watches B.25% profit is earned by selling each watch....
MCQ-> Each of the question below consists of a question and two statements numbered I and II given below it You have to decided whether the data provided in the statement are sufficient to answer the question Read both the statements and Give answer a:if the data in statement I alone are sufficient to answer the question while the data in statement II alone are not sufficient to answer the question Give answer b:if the data in statement II alone are sufficient to answer the question while the data in statement I alone are not sufficient to answer the question Give answer c:if the data either in statement I alone or in statement II alone are sufficient to answer the question Give answer d:if the data even in both the statement I and II together are not sufficient to answer the question Give answer e:if the data in both the statement I and II together are necessary to answer the questionBy selling a product for Rs 100/- how much profit was earned ? (I)20% profit would have been earned if it had been sold for Rs 90/- (II)The profit was one-third of the purchase price.....
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