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प्रश्न
Write the demerits of a nuclear energy plant.
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उत्तर
- Improper nuclear-waste storage and disposal can result in environmental contamination.
- Accidental leakage of nuclear radiation can lead to lethal disaster.
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संबंधित प्रश्न
Arrange the following fuels in the order of increasing calorific values (keeping the fuel with lowest calorific value first):
LPG, Coal, Alcohol, Dung cakes, Diesel
Of what material are the control rods of a nuclear reactor made?
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?
The following question are about the nuclear reactor of a power plant.
Is the energy produced by nuclear fission or nuclear fusion?
How does inserting the control rods in the graphite core affect the fission in the reactor? Explain your answer.
Calculate the energy released in joules when 5 g of a material is completely converted into energy doing a nuclear reaction.
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
The disposal of waves produced in a nuclear power plant poses a big problem because it is:
(a) too heavy
(b) highly inflammable
(c) extremely foul smelling
(d) highly radioactive
Which of the following can undergo nuclear fusion reaction?
(a) uranium
(b) deuterium
(c) barium
(d) krypton
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,
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?
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?
What is the source of energy of sun or stars?
State charge and mass of α-particle.
What are beta rays and gamma rays?
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 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.
Nuclear power plants in India
Which is the process used to harness nuclear energy these days? Explain it briefly.
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
