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Write in about 1000 words a fiction piece based on your speculation on the science and technology of the twenty-second

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Attempt to formulate your ‘moral’ views on the practice of science. Imagine yourself stumbling upon a discovery, which has great academic interest but is certain to have nothing but dangerous consequences for the human society. How, if at all, will you resolve your dilemma

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Science, like any knowledge, can be put to good or bad use, depending on the user. Given below are some of the applications of science. Formulate your views on whether the particular application is good, bad or something that cannot be so clearly categorised : (a) Mass vaccination against

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Science, like any knowledge, can be put to good or bad use, depending on the user. Given below are some of the applications of science. Formulate your views on whether the particular application is good, bad or something that cannot be so clearly categorised : (a) Computers for

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Science, like any knowledge, can be put to good or bad use, depending on the user. Given below are some of the applications of science. Formulate your views on whether the particular application is good, bad or something that cannot be so clearly categorised : (a) Development of new

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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India has had a long and unbroken tradition of great scholarship — in mathematics, astronomy, linguistics, logic and ethics. Yet, in parallel with this, several superstitious and obscurantistic attitudes and practices flourished in our society and unfortunately continue even today — among many educated people too. How will you use your knowledge of science to develop strategies to counter these attitudes

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Though the law gives women equal status in India, many people hold unscientific views on a woman’s innate nature, capacity and intelligence, and in practice give them a secondary status and role. Demolish this view using scientific arguments, and by quoting examples of great women in science and other spheres; and persuade yourself and others that, given equal opportunity, women are on par with

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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“It is more important to have beauty in the equations of physics than to have them agree with experiments”. The great British physicist P. A. M. Dirac held this view. Criticize this statement. Look out for some equations and results in this book which strike you as

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Though the statement quoted above may be disputed, most physicists do have a feeling that the great laws of physics are at once simple and beautiful. Some of the notable physicists, besides Dirac, who have articulated this feeling, are : Einstein, Bohr, Heisenberg, Chandrasekhar and Feynman. You are urged to make special efforts to get access to the general books and writings by these and other great masters of physics. (See the Bibliography at the end of this book.) Their writings are truly inspiring

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Textbooks on science may give you a wrong impression that studying science is dry and all too serious and that scientists are absent-minded introverts who never laugh or grin. This image of science and scientists is patently false. Scientists, like any other group of humans, have their share of humorists, and many have led their lives with a great sense of fun and adventure, even as they seriously pursued their scientific work. Two great physicists of this genre are Gamow and Feynman. You will enjoy reading their books listed in the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Calculate the angle of 10

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Calculate the angle of 1′ (minute of arc or

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Calculate the angle of 1″(second of arc or arc second) in radians. Use `360^0`=2π rad, 10=60′ and 1′ = 60

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A man wishes to estimate the distance of a nearby tower from him. He stands at a point A in front of the tower C and spots a very distant object O in line with AC. He then walks perpendicular to AC up to B, a distance of 100 m, and looks at O and C again. Since O is very distant, the direction BO is practically the same as AO; but he finds the line of sight of C shifted from the original line of sight by an angle θ= 400 (θ is known as ‘parallax’) estimate the distance

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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The moon is observed from two diametrically opposite points A and B on Earth. The angle θ subtended at the moon by the two directions of observation is `1^o 54′`. Given the diameter of the Earth to be about `1.276 xx 10^7` m, compute the distance of the moon from the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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The Sun’s angular diameter is measured to be 1920′′. The distance D of the Sun from the Earth is `1.496 xx 10^11` m. What is the diameter of the Sun

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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If the size of a nucleus (in the range of `10^(–15)m` to `10^(–14)m`) is scaled up to the tip of a sharp pin, what roughly is the size of an atom ? Assume tip of the pin to be in the range `10^(–5)m` to

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Two clocks are being tested against a standard clock located in a national laboratory. At 12:00:00 noon by the standard clock, the readings of the two clocks are : _ Clock 1 Clock 2 Monday 12:00:05 10:15:06 Tuesday 12:01:15 10:14:59 Wednesday 11:59:08 10:15:18 Thursday 12:01:50 10:15:07 Friday 11:59:15 10:14:53 Saturday 12:01:30 10:15:24 Sunday 12:01:19 10:15:11 If you are doing an experiment that requires precision time interval measurements, which of the two clocks will you prefer

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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We measure the period of oscillation of a simple pendulum. In successive measurements, the readings turn out to be 2.63 s, 2.56 s, 2.42 s, 2.71s and 2.80 s. Calculate the absolute errors, relative error or percentage

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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The temperatures of two bodies measured by a thermometer are `t_1 = 20 ^0C ± 0.5 ^0C` and `t_2 = 50 ^0C ± 0.5 ^0C`. Calculate the temperature difference and the error their

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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