The ratio of atomic radius to its nuclear radius is about___________________?
The ratio of atomic radius to its nuclear radius is about___________________?
A. 105
B. 108
C. 1012
D. 1015
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Fast breeder reactors do not____________________?
Fast breeder reactors do not____________________?A. Use Th-232 as fissile fuel
B. Convert fertile material to fissile material
C. Use fast neutrons for fission
D. Use molten sodium as coolantThe size of an atom is of the order of one __________________?
The size of an atom is of the order of one __________________?A. °Angstrom
B. Fermi
C. Micron
D. mmExtraction of uranium from its ore is done by ______________ method?
Extraction of uranium from its ore is done by ______________ method?A. Chemical
B. Pyrometallurgical
C. Physical beneficiation
D. ElectrometallurgicalThe decay product of tritium (a beta emitter) is_________________?
The decay product of tritium (a beta emitter) is_________________?A. Lithium
B. Helium
C. Deuterium
D. HydrogenHow many atoms are present in one gm-atom of an element ?
How many atoms are present in one gm-atom of an element ?A. 2 × 1023
B. 6 × 1023
C. 6 × 1032
D. 5 × 105Heavy water is preferred over ordinary water as a coolant, because it?
Heavy water is preferred over ordinary water as a coolant, because it?A. Acts both as an efficient coolant as well as a moderator
B. Can be heated to a higher temperature without pressurizing
C. Is less prone to radiation damage
D. All A., B. and C.