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प्रश्न
Hydroelectric power station : Water stored in dams : : Nuclear power station : ____________
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उत्तर
Hydroelectric power station : Water stored in dams : : Nuclear power station : Uranium
संबंधित प्रश्न
One of the following is not a characteristic of a good fuel. This is:
(a) high calorific value
(b) no emission of smoke
(c) smooth burning
(d) high ignition temperature
Arrange the following fuels in the order of decreasing calorific values (keeping the fuel with highest calorific value first):
Biogas, Kerosene, Wood, Petrol, Hydrogen gas, Methane
Where, in a nuclear power station, is uranium used up?
Write Einstein's mass-energy equation. Give the meaning of each symbol which occurs in it.
What is the source of energy of the sun and other stars?
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
One eV (electron volt) of nuclear energy is equivalent of:
(a) 1.6 × 10−14 J
(b) 1.6 × 10−12 J
(c) 1.6 × 10−19 J
(d) 1.6 × 10−13 J
Nuclear fission reactions are not a source of energy for one of the following. This is:
(a) atom bomb
(b) power plants
(c) sun
(d) pacemaker
Identify the process shown in the figure and name it.
Which one of the following statements about alpha and beta particles is
correct?
What do you mean by atomic number?
'Radioactivity is a nuclear phenomenon'. Comment on this statement.
State charge and mass of β-particle.
A nucleus of an element has the symbol 84P202, and emits an α-particle and then a β-particle. The final nucleus is bQa Find a and b.
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 proton and Express the change and write the symbol of the new nucleus.
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Find the number of electrons in the neutral atom of this isotope.
Why are control rods used in nuclear reactors?
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
