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प्रश्न
Identify the process shown in the figure and name it.
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उत्तर
The given figure is of nuclear fission (Chain reaction).
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संबंधित प्रश्न
Which of the following is not an example of a bio-mass energy source?
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
Of what material are the control rods of a nuclear reactor made?
Where, in a nuclear power station, is uranium used up?
Fill in the following blank with suitable word:
Nuclear .......... is used in nuclear power stations for the production of electricity.
Fill in the following blank with suitable word:
In a nuclear power station, nuclear fission takes place in the .............
Describe the process by which energy is released in the sun. Write the equation of the nuclear reaction involved.
State the disadvantages of nuclear energy.
Which of the two, nuclear fusion and nuclear fusion, is made use of:
(1) for the production of electricity?
(2) for making a hydrogen bomb?
Which of the following is used as a moderator in the reactor of a nuclear power station?
(a) liquid sodium
(b) boron
(c) graphite
(d) carbon dioxide
The control rods used in the reactor of a nuclear power plant are made of:
(a) steel
(b) graphite
(c) uranium
(d) boron
One MeV of nuclear energy is equivalent to:
(a) 1.6 × 10−13 J
(b) 1.6 × 10−19 J
(c) 1.6 × 10−16 J
(d) 1.6 × 10−15 J
A nuclear reaction is represented by the following equation:
`""_92^235U+_0^1n-> _56^139Ba+_36^94Kr+xc+E`
Name one installation where the above nuclear reaction is utilised.
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
What type of nuclear bomb is based on similar reactions?
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?
Distinguish between α, β and γ rays.
An element 92U238 losses one alpha particle, and then one β-particle and then again one β- particle to get the final nucleus bQa.
(i) Write down the values of a and b.
(ii) State the relationship between the nuclei P and Q.
What is nuclear waste? What are hazard of nuclear waste to living beings? How is nuclear waste disposed off?
Define.
Nuclear fission
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
