Nucleus of tritium has __________ neutrons.
Which of the following is the most harmful for the human being ?
Candu reactor is a __________ nuclcear reactor.
"Critical mass" is the minimum mass of nuclear fissile material required for the
Which of the following gases has very high neutron capture cross-section, making it unsuitable as a coolant in nuclear reactor?
Unit of radioactivity is
Molten sodium is used as a coolant in a fast breeder reactor, because of its
Which of the following nuclear materials is fissile ?
The first underground nuclear test was conducted by India at
When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as
Fuel for a fast breeder reactor is
Enriched uranium means that, it contains
Nuclear power reactor located at Tarapur is of __________ type.
Which of the following is not an ore of uranium ?
Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is
Heavy water is preferred over ordinary water as a coolant, because it.
An element having large number of __________ is most easily subjected to nuclear fission.
Emission of β-particles during radioactive decay of a substance is from
Radioactive decay is a __________ change.
Which of the following is a non-fissile material ?
The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.eV) is about __________ metres/second.
Critical energy should be __________ the neutron binding energy of the atom in order to initiate a nuclear fission.
The number of neutrons in the nucleus of Uranium-(92U233) is
Coolant present in the primary circuit of a pressurised water reactor is high pressure
Neutrons have mass approximately equal to that of __________ atoms.
Extraction of uranium from its ore is done using __________ methods.
Main source of __________ is monazite sand.
The critical mass of a fissionable material can be reduced by
Fast breeder test reactor at Kalpakkam is designed for using
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