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प्रश्न
In nuclear power plants, the chain reaction cannot be controlled.
विकल्प
True
False
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उत्तर
False
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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
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.
In the nuclear reactor of a power plant:
how do control rods control the rate of fission?
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
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`
Identify the particle c and the number x of such particles produced in the reaction.
'Radioactivity is a nuclear phenomenon'. Comment on this statement.
Name the following nuclear reaction:
\[\ce {^3_1H + ^2_1H -> ^4_2He + ^1_0n + γ}\]
What changes will take place in the mass number and atomic number of the nucleus Y if it emits gamma radiations?
What happens to the atomic number of an element when it emits an alpha particle.
State the energy conversion taking place in a solar cell.
What safety measures and needed in a nuclear power plant?
An element X has the symbol 84X202. It emits an alpha-particle and then a beta-particle. The final nucleus is bYa. Find a and b.
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Mention the relationship between 92U235 and 92U238.
Write the merits of nuclear energy.
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Atomic power plant in Maharashtra is ______.
