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प्रश्न
The disposal of nuclear waste safely is a big challenge before scientists.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Which of the following is not an example of a bio-mass energy source?
Compare and contrast bio-mass and hydro electricity as sources of energy.
What is a fuel? Give five examples of fuels.
With the help of a labelled diagram, describe the working of a nuclear power plant
The control rods used in the reactor of a nuclear power plant are made of:
(a) steel
(b) graphite
(c) uranium
(d) boron
The 'coolants' which can be used in the reactor of a nuclear power station are:
(a) liquid mercury and nitrogen dioxide
(b) liquid sodium and carbon dioxide
(c) liquid ammonia and carbon monoxide
(d) liquid boron and uranium oxide
The mass numbers of four elements A, B, C and D are 2, 20, 135 and 235, respectively. Which one of them will be most suitable to make:
a hydrogen bomb?
A nuclear reactor has half the length of all its control rods inserted in graphite. What must be done so that the reactor produces more heat? Explain your answer.
Explain why, in a nuclear reactor, the chain reaction stops if the control rods are fully inserted into the graphite.
Explain with a diagram the step-by-step energy conversion in a nuclear power plant.
Which one of the following statements about alpha and beta particles is
correct?
In what way are these numbers related to the isotopes of an element?
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.
Hydroelectric power station : Water stored in dams : : Nuclear power station : ____________
Write the problems associated with hydroelectric power projects.
Why are control rods used in nuclear reactors?
Write a short note.
Nuclear Power Plant
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Copy and complete the nuclear reaction by filling in the blanks.
\[\ce{_92U^235 + _0n^1 -> _56Ba^{\underline{\phantom{....}}} + \underline{\phantom{..}}Kr^92 + 3 _0n^1}\]
