Unseen passage to assess comprehension – Ncert- Class 11/12
Unseen passage – 3
Read the passage caefully and answer the question:-
(1) Nuclear capability gives a status to the country in the community of nations. No nation can afford to make
destructive use of the nuclear energy without risking a World War. That is why America did not make use
of nuclear weapon in the Vietnam War though it had become a matter of prestige for her. Similarly Russia
preferred to pull out her missile bases from Cuba instead of coming in direct conflict with a nuclear power,
America. But India, since she started adopting nuclear technology, had decided to make only peaceful use
of nuclear energy. The fear expressed by Pakistan and the comments made in the Chinese press are more
for the sake of propaganda than for the projection of truth.
(2) India needs nuclear energy in order to meet her power shortage. She has been depending upon hydroelectric
power which is undependable because of the uncertainty of rainfall. Good quality of coal which is another
source of energy cannot be extracted commercially because it lies very deep and the cost of extraction
is very high. India is not producing much of oil, rather she has to import nearly 74 per cent of her total
consumption. So the only alternative with India is to have a cheaper and more dependable source of energy.
The known reserves of thorium in India are sufficient to last many hundred years. That is why India has
already commissioned two nuclear power stations, one at Tarapur and the other at Rana Pratap Sagar. Each
one has the installed capacity of producing 420 M.W. of electricity. Two other at Kalpakkam, are operational.
This energy will be able to meet the power shortage throughout the country. If industries work at their full
capacity, production will be higher and so per capita income will increase and inflation will be neutralized.
(3) With the help of controlled nuclear explosions, artificial dams can be made. In fact for building a dam there
should be two huge mountain walls enclosing a deep valley just near the course of a river. These conditions
are not available at all the places. So with the help of controlled nuclear explosions mountains can be blown
up. This can also help in laying roads in the mountainous areas. In fact, some of the borders of India have
mountainous terrain and the movement of the army is quite difficult. So even for the sake of national security
it is necessary to have roads in those areas.
(4) With the help of radiation the shelf life of vegetables and fruits can be increased. In the tropical countries
like India, it is necessary that the perishable fruit stuffs are preserved for a long time. Radiation can check
the sprouting of onions and potatoes which are much in demand in foreign countries. Similarly fruits like bananas and mangoes which have much export potential can be preserved for a very long time. The texture and taste of the fruit do not undergo any change.
(5) Nuclear technology can also be harnessed for medical purposes. It is said that radioactive iodine is used
for detecting the disease of the thyroid glands. Similarly, India of U.N. experts, radiated vaccine which can
immunize sheep from lungworm disease, which used to take a heavy toll of sheep every year.
(6) Properly processed nuclear fuel is also used for artificial satellite in space. Weather satellites can predict
cyclones and the rainfall with extreme accuracy. Communication satellites can help in conveying the
messages to very long distances. In a huge country like India, communication satellites are necessary.
(7) Radiation is also used for preparing the mutant seeds. Many varieties of rice and some cereals have been
prepared at Tarapur laboratory. This will increase our agricultural production and help India to become
economically better off. So for India it is necessary to make peaceful uses of nuclear energy.

