1. FAINT-HEARTED





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MCQ-> In the modern scientific story, light was created not once but twice. The first time was in the Big Bang, when the universe began its existence as a glowing, expanding, fireball, which cooled off into darkness after a few million years. The second time was hundreds of millions of years later, when the cold material condensed into dense suggests under the influence of gravity, and ignited to become the first stars.Sir Martin Rees, Britain’s astronomer royal, named the long interval between these two enlightements the cosmic ‘Dark Age’. The name describes not only the poorly lit conditions, but also the ignorance of astronomers about that period. Nobody knows exactly when the first stars formed, or how they organized themselves into galaxies — or even whether stars were the first luminous objects. They may have been preceded by quasars, which are mysterious, bright spots found at the centres of some galaxies.Now two independent groups of astronomers, one led by Robert Becker of the University of California, Davis, and the other by George Djorgovski of the Caltech, claim to have peered far enough into space with their telescopes (and therefore backwards enough in time) to observe the closing days of the Dark age.The main problem that plagued previous efforts to study the Dark Age was not the lack of suitable telescopes, but rather the lack of suitable things at which to point them. Because these events took place over 13 billion years ago, if astronomers are to have any hope of unravelling them they must study objects that are at least 13 billion light years away. The best prospects are quasars, because they are so bright and compact that they can be seen across vast stretches of space. The energy source that powers a quasar is unknown, although it is suspected to be the intense gravity of a giant black hole. However, at the distances required for the study of Dark Age, even quasars are extremely rare and faint.Recently some members of Dr Becker’s team announced their discovery of the four most distant quasars known. All the new quasars are terribly faint, a challenge that both teams overcame by peering at them through one of the twin Keck telescopes in Hawaii. These are the world’s largest, and can therefore collect the most light. The new work by Dr Becker’s team analysed the light from all four quasars. Three of them appeared to be similar to ordinary, less distant quasars. However, the fourth and most distant, unlike any other quasar ever seen, showed unmistakable signs of being shrouded in a fog because new-born stars and quasars emit mainly ultraviolet light, and hydrogen gas is opaque to ultraviolet. Seeing this fog had been the goal of would-be Dark Age astronomers since 1965, when James Gunn and Bruce Peterson spelled out the technique for using quasars as backlighting beacons to observe the fog’s ultraviolet shadow.The fog prolonged the period of darkness until the heat from the first stars and quasars had the chance to ionise the hydrogen (breaking it into its constituent parts, protons and electrons). Ionised hydrogen is transparent to ultraviolet radiation, so at that moment the fog lifted and the universe became the well-lit place it is today. For this reason, the end of the Dark Age is called the ‘Epoch of Re-ionisation’. Because the ultraviolet shadow is visible only in the most distant of the four quasars, Dr Becker’s team concluded that the fog had dissipated completely by the time the universe was about 900 million years old, and oneseventh of its current size.In the passage, the Dark Age refers to
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MCQ-> Read the following passage carefully and answer the question given below it Certain words/phrases have printed in bold to help you locate them while answering some of the question.Once upon a time there lived a vicious king Raja Shankara short-tempered and temperamental “God I am” he said to his image as he started into the mirror everyday many times a day He was obsessed with himself He loved no one but himself He was blinded towards the injustice in his kingdom because he had little time for his subjects He wasted most of his time in pouring milk and honey over himself Interruption in his possessed life was dealt with stern reprimanding and sometimes on petty issues he would behead his servants Provoked by his evil advisor Twishar he went on with his self-indulged life unaware of the plot his very devoted advisor was planning.A plot to dethrone the king rule the kingdom with his wicked ways only to harness wealth and the reputation of a King. One morning the king was on his usual morning horseback rounds but returned to the palace with an intense look on his face.He locked himself inside his palatial room only to unlock it at sundown.Just as the doors cracked open and Raja Shankara emerged from it his wife rushed to embrace him. She feared a damaging incident had occurred. The King spoke seldom that day and awoke the next day to make a proclamation to his servants and subjects.The whole kingdom feared what was in store for them from their angry King.But to their surprise he said to all gathered.”From now on I will be a different kings.A softer and a patient king. True to his words from that day on the king had truly turned on a new leaf he cleaned out the corruption and injustice in a tender manner with punishments aimed to renew the person from within. One fine day his evil advisor gathered courage to ask the reason for his paradigm shift And the king answered.When I went on horseback that morning a month ago, I noticed a dog brutally chasing a cat,The cat managed to sneak into a hole only after the dog bit her leg,maiming her for life.Not far the barked at a farmer who picked up a sharp stone and hit it straight in the dog’s eye.Bleeding profusely the dog yelped in pain.As the farmer walked on he slipped on the edge of the road and broke his head. All this happened in a matter of minutes before me and then I realized that evil begets evil.I thought about it deeply and was ready to give up my worldly life for the betterment of my subjects I wanted to give up evil in me as I did not want evil to encounter me. Sniggering away the immoral advisor thought what a perfect time it was to dethrone the king because the Raja had grown kind hearted and patient and would not endeavour a combat.Thinking how he would plan his attack he stumbled over a step that took him hurling down the remaining steps bringing his stop with a crash He howled in pain only to discover he had broken the bones in both his legs.How can Raja Shankara be described before his transformation ? (A)He was unjust (B)He was preoccupied with himself (C)He was cruel....
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