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प्रश्न
Define.
Nuclear fission
उत्तर
In nuclear fission, the atom of a heavy element is bombarded by a neutron to form an unstable isotope which further splits into two or more smaller nuclei releasing extra neutrons and large amount of energy and heat.
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संबंधित प्रश्न
The fuel having a calorific value of 55 kJ/g is likely to be:
(a) biogas
(b) methane gas
(c) hydrogen gas
(d) natural gas
One eV (electron volt) of nuclear energy is equivalent of:
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`""_92^235U+_0^1n-> _56^139Ba+_36^94Kr+xc+E`
Identify the particle c and the number x of such particles produced in the reaction.
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(i) an atom bomb,
Identify the process shown in the figure and name it.
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emits a beta particle forming an element Q. Q can be represented by
In what way are these numbers related to the isotopes of an element?
Write the approximate mass of a proton, neutron and electron in a.m.u.
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State, giving reason, whether the following nuclear decay is allowed or not?
\[\ce{_Z^AX -> _Z^AQ + γ}\]
State charge and mass of α-particle.
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(i) Write down the values of a and b.
(ii) State the relationship between the nuclei P and Q.
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.
Which substance is used as fuel in nuclear power plants?
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Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Name the nuclear radiation which has the highest ionizing power.
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