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 ?
(A) α-rays
(B) β-rays
(C) γ-rays
(D) X-rays
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 ______________?
(A) Protons
(B) Electrons
(C) Neutrons
(D) Nothing
X-rays are electromagnetic waves like________________?
(A) Light waves
(B) Heat waves
(C) Microwaves
(D) γ-rays
Which one of the following possesses greater penetration power ?
(A) α-rays
(B) β-rays
(C) γ-rays
(D) Neutron-rays
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 _________________?
(A) Refrigeration
(B) Aerosol spray
(C) Plastic foam industry
(D) All of above