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प्रश्न
What is stellar energy?
उत्तर
A fusion reaction that takes place in the cores of the Sun and other stars results in an enormous amount of energy, which is called stellar energy.
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संबंधित प्रश्न
What are the characteristics of an ideal fuel (or good fuel)?
In the nuclear reactor of a power plant:
how do control rods control the rate of fission?
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
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,
Which one of the following statements about alpha and beta particles is
correct?
An imaginary radioactive element `"_92X^235` decays to form X1; X2; X3; X4; X5 and X6 nuclides, by ejecting two β-particles, followed by α-particles and again two β-particles, followed by α-particle. Represent the various nuclear changes in the form of an equation. State the mass number and atomic number of X6. List the isotopes and isobars in the above nuclear equation.
How does the position of an element change in the periodic table when it emits out an alpha particle?
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Do all isotopes have the same number of neutrons?
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Give a scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
