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प्रश्न
Write the merits of nuclear energy.
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उत्तर
A nuclear power plant does not use fossil fuel like coal. Therefore, problems like air pollution do not arise.
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संबंधित प्रश्न
What is a fuel? Give five examples of fuels.
State whether the fission of uranium-235 is caused by low energy neutrons or high energy neutrons.
Fill in the following blank with suitable word:
Uranium-235 atoms will split when hit by .......... This is called ...........
What is nuclear fission? Explain with an example. Write the equation of the nuclear reaction involved.
What is nuclear fusion? Explain with an example. Write the equation of the reaction involved.
How is the working nuclear reactor of a power plant shut down in an emergency?
The heat energy released during nuclear fission and fusion is due to the:
(a) conversion of stored chemicals into energy
(b) conversion of momentum into energy
(c) conversion of mass into energy
(d) conversion of magnetism into energy
Which one of the following statements about alpha and beta particles is
correct?
What do you understand by radioactive decay? An isotope of Uranium `""_92^238 "U"` is radioactive and changes into Thorium 92 by the emission of an alpha particle. Write a symbolic equation for this decay process.
In what way are these numbers related to the isotopes of an element?
Complete the following nuclear change:
\[\ce{^24_11 Na -> ...Mg.... + ^0_-1β}\]
State, giving reason, whether the following nuclear decay are allowed or not?
\[\ce{_Z^AP -> _{Z-2}^AY + _2^4He}\]
The nucleus of an atom does not contain electrons. Explain how is it possible for the nucleus to emit a beta particle which is fast moving electron.
A certain nucleus X has a mass number 14 and atomic number 6. The nucleus X changes to `"_7Y^14` after the loss of a particle. A radioactive substance is oxidized. What change would you expect to take place in the nature of its radioactivity? Give a reason for your answer.
A certain nucleus X has a mass number 15 and atomic number 7. Find the number of neutrons. The nucleus X losses one α-particle and Express the change and write the symbol of the new nucleus.
In nuclear power plants, neutrons are bombarded on atoms of __________.
The disposal of nuclear waste safely is a big challenge before scientists.
Complete the following nuclear changes:
\[\ce {^238_92 P ->\underset{-}-{Q} + ^4_2He->\underset{-}-{R} + ^0_-1e}\]
Why is nuclear fission useful to mankind?
