मराठी

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 - Physics

Advertisements
Advertisements

प्रश्न

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 smallpox to curb and finally eradicate this disease from the population. (This has already been successfully done in India.)

(b) Television for the eradication of illiteracy and for mass communication of news and ideas.

(c) Prenatal sex determination.

(d) Computers for the 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.

उत्तर

(a) Good, because it helped in eradicating a dreaded disease from the Earth.

(b) Good, because it helps in literacy campaign and is an effective method of mass communication and entertainment.

(c) Bad, because it leads to practice of abortion in case of female foetus.

(d) Good, because it increases work efficiency.

(e) Good, because it helped in worldwide communication process.

(f) Bad, because nuclear weapons may cause mass destruction of mankind.

(g) Bad, because these techniques may be used for destructive purposes.

(h) Good, because pure water supply will improve the health of people.

(i) Plastic surgery is something which cannot be classified as either good or bad. The technique helps to remove certain type of deformations in needy persons. But plastic surgery for cosmetic purposes is not good.

(j) Cloning is bad because it has the potential to destroy the normal family life of human society.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Physical World - Exercises [पृष्ठ १४]

APPEARS IN

एनसीईआरटी Physics [English] Class 11
पाठ 1 Physical World
Exercises | Q 11 | पृष्ठ १४

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Write in about 100 words a fiction piece based on your speculation on the science and technology of the twenty-second century.


The metre is defined as the distance travelled by light in `1/(299,792,458)` second. Why didn't people choose some easier number such as  `1/(300,000,000)` second? Why not 1 second?


Suppose you are told that the linear size of everything in the universe has been doubled overnight. Can you test this statement by measuring sizes with a metre stick? Can you test it by using the fact that the speed of light is a universal constant and has not changed? What will happen if all the clocks in the universe also start running at half the speed?


Find the dimensions of electric dipole moment p .
The defining equations are p = q.d and M = IA;
where d is distance, A is area, q is charge and I is current.


Find the dimensions of magnetic dipole moment M.
The defining equations are p = q.d and M = IA;
where d is distance, A is area, q is charge and I is current.


The kinetic energy K of a rotating body depends on its moment of inertia I and its angular speedω. Assuming the relation to be \[k = KI^0w^B\]  where k is a dimensionless constant, find a and b. Moment of inertia of a sphere about its diameter is  \[\frac{2}{5}M r^2\] 


A particle moves on a given straight line with a constant speed ν. At a certain time it is at a point P on its straight line path. O is a fixed point. Show that \[\vec{OP} \times \vec{\nu}\] is independent of the position P.


Find the area enclosed by the curve y = sin x and the X-axis between x = 0 and x = π.


A rod of length L is placed along the X-axis between x = 0 and x = L. The linear density (mass/length) ρ of the rod varies with the distance x from the origin as ρ = a + bx. (a) Find the SI units of a and b. (b) Find the mass of the rod in terms of a, b and L.


A metre scale is graduated at every millimetre. How many significant digits will be there in a length measurement with this scale?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×