Search
.Management Sciences
Category: Nuclear Physics
Nuclear forces exist between ___________________?
A. Proton-proton
B. Proton-neutron
C. Neutron-neutron
D. All of the above
Various types of cancer are treated by_________________?
A. Cobalt-60
B. Strontium-90
C. Carbon-14
D. Nickel-63
The unit of radioactivity curie is equal to________________?
A. 3.74 x 109 disintegration per sec
B. 3.70 x 1010 disintegration per sec
C. 3.55 x 1010 disintegration per sec
D. 3.60 x 1010 disintegration per sec
Beta particles ionize an atom_________________?
A. Due to the electrostatic force of attraction
B. Due to the electrostatic force of repulsion
C. Due to a direct collision
D. Due to the gravitational force
Which one of the following radiations possesses maximum velocity ?
A. α-rays
B. β-rays
C. γ-rays
D. All of above have the same speed
For chain reaction to build up the size of the radioactive target should be______________?
A. Greater than the critical size
B. Less than the critical size
C. Equal to the critical size
D. All of above can build up a change reaction
In the nucleus of uranium, the number of neutrons will be _____________?
A. 92
B. 235
C. 143
D. Different for different isotopes
The fission chain reaction in a nuclear reactor can be controlled by introducing _______________?
A. Iron rods
B. Graphite rods
C. Cadmium rods
D. Platinum rods
CFC is used in _________________?
A. Refrigeration
B. Aerosol spray
C. Plastic foam industry
D. All of above
Recent Comments