Which one of the following possesses greater penetration power ?
A. α-rays
B. β-rays
C. γ-rays
D. Neutron-rays
Physics Mcqs
Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________?
Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________?
A. Trajectory
B. Range
C. Firing level
D. Limit
CFC is used in _________________?
CFC is used in _________________?
A. Refrigeration
B. Aerosol spray
C. Plastic foam industry
D. All of above
Pair production cannot take place in a vacuum as ________ is not conserved ?
Pair production cannot take place in a vacuum as ________ is not conserved ?
A. Energy
B. Charge
C. Mass
D. MomentumB.
An alpha particle can produce fluorescence in__________________?
An alpha particle can produce fluorescence in__________________?
A. ZnS
B. Barium platinocyanide
C. Calcium tungstate
D. All of above
Geiger counter is suitable for _________________?
Geiger counter is suitable for _________________?
A. Fast counting
B. Extremely fast counting
C. Slow counting
D. All situations
The penetration power of alpha particle as compared to beta particle is_______________?
The penetration power of alpha particle as compared to beta particle is_______________?
A. 10 times more
B. 100 times more
C. 100 times less
D. 10 times less
Strontium-90 is used as __________________?
Strontium-90 is used as __________________?
A. α-particle source
B. β-particle source
C. γ-rays source
D. Neutron source
An alpha particle in a single encounter__________________?
An alpha particle in a single encounter__________________?
A. Loses a small fraction of its energy
B. Losses most of its energy
C. Loses no energy at all
D. Loses all of its energy
T.V sets and microwave ovens emit ___________________?
T.V sets and microwave ovens emit ___________________?
A. X-rays
B. α-rays
C. β-rays
D. γ-rays