Options:
- A. Energy
- B. Charge
- C. Mass
- D. MomentumB.
View Answer
0
Physics
If one or more of the neutrons emitted during fission cab be used to build up further fission then the reaction is self-sustained and is known as __________________?
Options:
- A. Fission reaction
- B. Fusion reaction
- C. Chain reaction
- D. Chemical reaction
View Answer
C. Chain reaction
CFC is used in _________________?
Options:
- A. Refrigeration
- B. Aerosol spray
- C. Plastic foam industry
- D. All of above
View Answer
D. All of above
Pair production takes place in the vicinity of a heavy nucleus so that_____________?
Options:
- A. Net energy is conserved
- B. Net charge is conserved
- C. Net momentum is conserved
- D. All of the above
View Answer
D. All of the above
Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________?
Options:
- A. Trajectory
- B. Range
- C. Firing level
- D. Limit
View Answer
B. Range
During an encounter with an atom alpha particle knocks out ______________?
Options:
- A. Protons
- B. Electrons
- C. Neutrons
- D. Nothing
View Answer
B. Electrons
Which one of the following possesses greater penetration power ?
Options:
- A. ?-rays
- B. ?-rays
- C. ?-rays
- D. Neutron-rays
View Answer
D. Neutron-rays
The path of alpha particle is_______________?
Options:
- A. Rectilinear
- B. Curved
- C. Zig-zag or erratic
- D. Elliptical
View Answer
C. Zig-zag or erratic
The most useful tracer is_________________?
Options:
- A. Sr-90
- B. I-131
- C. CA-41
- D. C-14
View Answer
D. C-14
Which of the following radiations are suitable for the treatment of an infection in the interior of the body ?
Options:
- A. ?-rays
- B. ?-rays
- C. ?-rays
- D. X-rays
View Answer
C. ?-rays