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5 months ago

Physical World Class 11th

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 equations and results in this book which strike you as beautiful.
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Vishal Baghel

Contributor-Level 10

1.14 One of the reasons of not so much popularity amongst masses about Physics is it is full of equations and symbols. I tend to agree with Scientist Dirac. But when one look at the simple equations, they are really beautiful. For example – W = mg, F = pA, E = mc2 etc.

New answer posted

5 months ago

Physical World Class 11th

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.
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Vishal Baghel

Contributor-Level 10

1.13 Both men and women are of equal caliber. Since nature has given extra strength to women to bear child, they can endure immense physical and mental pain than men. Women have a keen eye for perfection, hence more and more women are being employed in present industries. Earlier the professions like fighter pilots, CEO, security personnel, cab drivers, assemblers, in factories, even football referee were believed to be male dominated, but we can see the presence of women in these fields also.

Following is the list of some of the women, who have excelled in various fields.

  • Indira Gandhi
  • Margaret Thatcher
  • Mother Teresa
  • Indra Nouie
  • Kalpana Cha
...more

New answer posted

5 months ago

Physical World Class 11th

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 obscurantist 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?
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Vishal Baghel

Contributor-Level 10

1.12 Mass awareness is the only tool. By using different communication platforms like Radio, TV, Social media, Movies etc. people can be made aware. The superstitious belief can be explained in a scientific way and they can be made aware.

New answer posted

5 months ago

Physical World Class 11th

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 obscurantist 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?
0 Follower 2 Views

V
Vishal Baghel

Contributor-Level 10

1.12 Mass awareness is the only tool. By using different communication platforms like Radio, TV, Social media, Movies etc. people can be made aware. The superstitious belief can be explained in a scientific way and they can be made aware.

New answer posted

5 months ago

Physical World Class 11th

1.11 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 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) Prenatal sex determination

 

(d) Computers for increase in work efficiency

 

(e) Putting artificial satell

...more
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Vishal Baghel

Contributor-Level 10

1.11

(a) Good. Mass vaccination has helped the entire world to completely eradicate small pox.

 

(b) Good. Television helps in imparting education and has helped to a great extent to spread literacy, especially in rural belt. Along with education, it also helps to keep people informed about various news and important information through various TV programs.

 

(c) Bad. Because it leads to female foetus killing through abortion and changes the sex ratio in human population

 

(d) Good. It helps to avoid repetitive work and takes care of human error.

 

(e) Good. For data collection, communication, surveillance etc.

 

(

...more

New answer posted

5 months ago

Physical World Class 11th

1.10 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?
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Vishal Baghel

Contributor-Level 10

1.10 The living example is Wuhan virus. A scientist works for the benefit of mankind but when the formula falls in wrong hand, it brings a disaster. The whole world is still reeling under its harmful effect. Another example is AK-47. The designer never imagined that it could be used in this fashion, as being used by the terrorists.

New answer posted

5 months ago

Physical World Class 11th

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

Contributor-Level 10

1.9 A self-driven car arrives at a mall, passenger disembarks and the car automatically goes to the parking lot. A GPS based system guides the car to a vacant parking space.

The owner enters the mall. A robot comes to the GATE and greets. By scanning the face, the robot collects the data from the central database, finds out his/her nationality, food choices, medical history and shopping preferences.

On the monitor fitted on the robot, he / she orders the food, groceries etc. Robot speaks in his / her mother tongue and guides to the apparel shop etc. After that another robot waits near the exit GATE with the shopping trolley. The payment

...more

New answer posted

5 months ago

Physical World Class 11th

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.
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Vishal Baghel

Contributor-Level 10

1.8 Some of the new-age technology which has transformed the present and has an immense potential to change the future are:

  • Mobile phone technology ( 5G )
  • Artificial Intelligence and Machine learning
  • Biotechnology
  • Nanotechnology
  • 3D printing

New answer posted

5 months ago

Physical World Class 11th

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?
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Vishal Baghel

Contributor-Level 10

1.7 The advancement of modern Science and industrial revolution always go hand in hand. The requirement of industrial revolution is always fulfilled by the new discoveries of modern science. Some of the examples are:

  • Application of thermodynamics in steam engine had revolutionized the modern day transportation need
  • Application of projectile motion, usage of iron and gun powder helped in development of cannons and guns. England and Western Europe conquered the rest of the world by these weapons
  • The discovery of dynamite helped in mineral exploration

New answer posted

5 months ago

Physical World Class 11th

1.6 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?

(a) A tragic sea accident several centuries ago drowned a young Samurai. As a tribute to his bravery, nature through its inscrutable ways immortalized his face by imprinting it on the crab shells in that area.

 

(b) After the sea tragedy, fishermen in that area, in a gesture of honour to their dead hero, let free any crab shell caught by them which accidentally had a shape resembling the fa

...more
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Vishal Baghel

Contributor-Level 10

1.6 The argument (b) seems to be more logical and scientific.

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