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Nuclei
Hydrogen bomb is based upon
fission
fusion
chemical reaction
transmutation
B.
fusion
The working of hydrogen bomb is based on nuclear fusion. But for the process of nuclear fusion, a very high temperature (≈ 107 K) and a very high pressure is required, hence to construct a hydrogen bomb, first atom bomb is constructed.
The atom bomb is then covered from all sides by an enclosure of a compound of heavy hydrogen (deuteron) such as lithium hydride. First the atom bomb is exploded which produces such a high temperature and pressure that deuteron nuclei get fused and a huge amount of energy is released.
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If M0 is the mass of an oxygen isotope 8O17 , Mp and MN are the masses of a proton and a neutron respectively, the nuclear binding energy of the isotope is
In gamma-ray emission from a nucleus
When 3Li7 nuclei are bombarded by protons, and the resultant nuclei are 4Be8 , the emitted particles will be
The ‘rad’ is the correct unit used to report the measurement of
A photocell is illuminated by a small bright source placed 1 m away. When the same source of light is placed 1 /2 m away, the number of electrons emitted by photocathode would
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