Atomic and Nuclear Physics

Atomic and Nuclear Physics
In the air, the beta particle has a range of
few centimeters
several thousand meters
several hundred meters
several meters
Author: rikazzz Comment
Atomic and Nuclear Physics
For curing cancerous tumors and cells, doctors use
radioactive cobalt-60
radioactive cobalt-80
radioactive cobalt-90
radioactive cobalt-50
Author: rikazzz Comment
Atomic and Nuclear Physics
The number of protons and neutrons in the nucleus is called
neutron number (N)
atomic number (Z)
atomic mass number (A)
electron number (E)
Author: rikazzz Comment
Atomic and Nuclear Physics
C-14: C-12 ratio in a fossil bone is found to be 1/4th that of the ratio in the bone of an animal. The half-life of C-14 is 5730 years, the approximate age of the fossil is
12460 years
11460 years
13590 years
14580 years
Author: rikazzz Comment
Atomic and Nuclear Physics
The release of energy from the sun is due to
nuclear fission
nuclear fusion
burning of gases
chemical reaction
Author: rikazzz Comment
Atomic and Nuclear Physics
The greatest ionization power is possessed by
beta particles
gamma particles
neutrons
alpha particles
Author: rikazzz Comment
Atomic and Nuclear Physics
In the atmosphere, a small amount is present of radioactive
carbon-15
carbon-19
carbon-10
carbon-14
Author: rikazzz Comment
Atomic and Nuclear Physics
The positive charge in an atom was concentrated in
nucleus
shells
outside shells
between shells
Author: rikazzz Comment
Atomic and Nuclear Physics
During the second half-life, the original material is decayed
one quarter
two quarter
three quarter
all of above
Author: rikazzz Comment
Atomic and Nuclear Physics
The rate of radioactive decay is proportional to the number of
unstable nuclei
unstable protons
unstable electrons
unstable atoms
Author: rikazzz Comment

Go to Page