T.V sets and microwave ovens emit ___________________?
A. X-rays
B. α-rays
C. β-rays
D. γ-rays
Alpha particle ionizes an atom_________________?
Alpha particle ionizes an atom_________________?
A. Through direct collision
B. Through electrostatic attraction
C. Through electrostatic repulsion
D. All of above
The charge on alpha particles is________________?
The charge on alpha particles is________________?
A. Plus one
B. Plus two
C. Minus two
D. Minus one
Sterilization of surgical instruments medical supplies and bandages can be done by exposing them to a beam of_______________?
Sterilization of surgical instruments medical supplies and bandages can be done by exposing them to a beam of_______________?
A. α-rays
B. β-rays
C. γ-rays
D. B and C have equal antiseptic propertie
Various types of cancer are treated by_________________?
Various types of cancer are treated by_________________?
A. Cobalt-60
B. Strontium-90
C. Carbon-14
D. Nickel-63
Which of the following radiations are suitable for the treatment of an infection in the interior of the body ?
Which of the following radiations are suitable for the treatment of an infection in the interior of the body ?
A. α-rays
B. β-rays
C. γ-rays
D. X-rays
The path of alpha particle is_______________?
The path of alpha particle is_______________?
A. Rectilinear
B. Curved
C. Zig-zag or erratic
D. Elliptical
During an encounter with an atom alpha particle knocks out ______________?
During an encounter with an atom alpha particle knocks out ______________?
A. Protons
B. Electrons
C. Neutrons
D. Nothing
Pair production takes place in the vicinity of a heavy nucleus so that_____________?
Pair production takes place in the vicinity of a heavy nucleus so that_____________?
A. Net energy is conserved
B. Net charge is conserved
C. Net momentum is conserved
D. All of the above
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 __________________?
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 __________________?
A. Fission reaction
B. Fusion reaction
C. Chain reaction
D. Chemical reaction