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प्रश्न
The disposal of nuclear waste safely is a big challenge before scientists.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
The fuel having a calorific value of 55 kJ/g is likely to be:
(a) biogas
(b) methane gas
(c) hydrogen gas
(d) natural gas
Where, in a nuclear power station, is uranium used up?
Fill in the following blank with suitable word:
In a nuclear power station, nuclear fission takes place in the .............
What will happen if slow moving neutrons are made to strike the atoms of a heavy element `''235_92U`? What is the name of this process?
State the disadvantages of nuclear energy.
The following question are about the nuclear reactor of a power plant.
What is the purpose of using the graphite moderator?
How is the working nuclear reactor of a power plant shut down in an emergency?
Which produces more energy : nuclear fusion or nuclear fission?
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.
The energy in the reactor of a nuclear power station is produced by the process of:
(a) nuclear diffusion
(b) nuclear fission
(c) nuclear fusion
(d) nuclear fermentation
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
Name the process represented by this equation and describe what happens during this reaction.
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:
(i) an atom 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.
State the energy conversion taking place in a solar cell.
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. Represent this change in the form of an equation.
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Find the number of protons and neutrons in its nucleus.
One of the atomic power stations is located in ______.
When neutron is bombarded on atom of Uranium-235, it absorbs the neutron and converts into ______.
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Give a scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
