EASY
11th Mizoram Board
IMPORTANT
Earn 100

The shells of crabs found around a particular coastal location in Japan seem mostly to resemble the legendary face of a Samurai. Given below are two explanations of this observed fact. Which of these strikes you as a scientific explanation?

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Important Questions on Physical World

EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 1 - Physical World>EXERCISES>Q 1.7
The industrial revolution in England and Western Europe more than two centuries ago was triggered by some key scientific and technological advances. What were these advances?
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 1 - Physical World>EXERCISES>Q 1.8
It is often said that the world is witnessing now a second industrial revolution, which will transform the society as radically as did the first. List some key contemporary areas of science and technology, which are responsible for this revolution.
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 1 - Physical World>EXERCISES>Q 1.9
Write in about 1000 words a fiction piece based on your speculation on the science and technology of the twenty-second century.
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 1 - Physical World>EXERCISES>Q 1.1
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?
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 1 - Physical World>EXERCISES>Q 1.11

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

(a) Mass vaccination against small pox to curb and finally eradicate this disease from the population. (This has already been successfully done in India.)
(b) Television for eradication of illiteracy and for mass communication of news and ideas.
(c) Prenatural sex determination.
(d) Computers for increase in work efficiency.
(e) Putting artificial satellites into orbits around the Earth.
(f) Development of nuclear weapons.
(g) Development of new and powerful techniques of chemical and biological warfare.
(h) Purification of water for drinking.
(i) Plastic surgery.
(j) Cloning.

EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 1 - Physical World>EXERCISES>Q 1.12
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 obscurant is 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?
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 1 - Physical World>EXERCISES>Q 1.13
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 men.
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 1 - Physical World>EXERCISES>Q 1.14
“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 which strike you as beautiful.