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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
The calorific value and ignition temperature of fuel A are 55 kJ/g and 80°C, respectively. These values for fuel B are 80 kJ/g and 10°C, respectively. On burning, the fuel A produces CO2 and H2O while the fuel B produces CO2 , CO and SO2. Give three points of relative and disadvantages of these two fuels.
Which of the following is not a fossil fuel?
(a) coal
(b) petroleum gas
(c) biogas
(d) natural gas
Which one of the following is not renewable energy technology?
Write Einstein's mass-energy equation. Give the meaning of each symbol which occurs in it.
How does inserting the control rods in the graphite core affect the fission in the reactor? Explain your answer.
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
In a nuclear power plant, coolant is a substance:
(a) which cools the hot, spent steam to condense it back to water
(b) which transfers heat from reactor to water in heat exchanger
(c) which is boiled to make steam to turn the turbine
(d) which cools the generator coils to prevent their overheating.
The element `""_11^24 "Na"` changes to magnesium by the emission of a beta particle. Write down the symbolic equation for the beta emission.
A nucleus `"_11Na^24` emits a beta particle to change into Magnesium (Mg).
(i) Write the symbolic equation for the process.
(ii) What are numbers 24 and 11 called?
(iii) What is the general name `"_12^24Mg` with respect to `"_11^24Na`?
What changes will take place in the mass number and atomic number of the nucleus Y if it emits gamma radiations?
What is the effect on the atomic mass and the atomic number of a radioactive element, after the emission of an α-particle?
State charge and mass of β-particle.
How many alpha and beta particles are emitted when the uranium nucleus 92U238 decays to Lead If 82Pb206?
Complete the following fission reaction:
\[\ce{_92U^235 _0n^1 -> _aSb^133 + _41Co^b + 4_0n_1 + energy}\]
Write down the values of a and b.
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Find the number of protons and neutrons in its nucleus.
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Complete the following nuclear changes:
\[\ce {^238_92 P ->\underset{-}-{Q} + ^4_2He->\underset{-}-{R} + ^0_-1e}\]
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Express 1 a.m.u. in MeV.
