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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
Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun’s energy?
What are the characteristics of an ideal fuel (or good fuel)?
What do you think is the purpose of the thick, concrete chamber surrounding the reactor of a nuclear power plant?
Describe the process by which energy is released in the sun. Write the equation of the nuclear reaction involved.
How is the working nuclear reactor of a power plant shut down in an emergency?
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
State two conditions under which such a reaction takes place.
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.
Give scientific reasons.
The construction of turbine is different for different types of power plants.
One isotopes of uranium has a mass number of 235 and atomic number 92.
(a) What is the number of electrons in a neutral atom of this isotope?
(b) How many protons are there in the nucleus of this isotope?
(c) For another isotope of Uranium state which one of the numbers (238 or 92) changes?
(d) What is the number of protons in 238U?
An element P has an atomic mass of 239 and an atomic number of 92. It
emits a beta particle forming an element Q. Q can be represented by
State the kind of nuclear reaction taking place in a nucleus during the emission of a β-particle.
What changes will take place in the mass number and atomic number of the nucleus Y if it emits gamma radiations?
What will an alpha particle change into when it absorb two electrons.
Draw a simplified labelled diagram of a hot cathode ray tube.
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.
Hydroelectric power station : Water stored in dams : : Nuclear power station : ____________
Thermal power generation : Air pollution : : Nuclear power generation : _____________
Copy and complete the nuclear reaction by filling in the blanks.
\[\ce{_92U^235 + _0n^1 -> _56Ba^{\underline{\phantom{....}}} + \underline{\phantom{..}}Kr^92 + 3 _0n^1}\]
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
