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प्रश्न
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Mention the relationship between 92U235 and 92U238.
उत्तर
92U238 and 92U235 the difference is in their atomic masses but their atomic number is the same i.e., both have the same atomic number 92. The elements, that differ in their atomic masses but have the same atomic number are called isotopes, hence 92U238 and 92U235 are isotopes of the element uranium.
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संबंधित प्रश्न
Which one of the following is not renewable energy technology?
Fill in the following blank with suitable word:
Uranium-235 atoms will split when hit by .......... This is called ...........
In a nuclear power plant, coolant is a substance:
(a) which cools the hot, spent steam to condense it back to water
(b) which transfers heat from reactor to water in heat exchanger
(c) which is boiled to make steam to turn the turbine
(d) which cools the generator coils to prevent their overheating.
One MeV of nuclear energy is equivalent to:
(a) 1.6 × 10−13 J
(b) 1.6 × 10−19 J
(c) 1.6 × 10−16 J
(d) 1.6 × 10−15 J
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`""_92^235U+_0^1n-> _56^139Ba+_36^94Kr+xc+E`
Name one installation where the above nuclear reaction is utilised.
Explain why, in a nuclear reactor, the chain reaction stops if the control rods are fully inserted into the graphite.
In what way are these numbers related to the isotopes of an element?
Two statements are given - one labelled Assertion (A) and the other labelled Reason (R).
Assertion (A): In the process of nuclear fission, the amount of nuclear energy generated by the fission of an atom of uranium is so tremendous that it produces 10 million times the energy produced by the combustion of an atom of carbon from coal.
Reason (R): The nucleus of a heavy atom such as uranium, when bombarded with low energy neutrons, splits apart into lighter nuclei. The mass difference between the original nucleus and the product nuclei gets converted to tremendous energy.
Nuclear power plants in India
Discuss problems associated with nuclear power generation.
