Atomic and Nuclear Physics

Atomic and Nuclear Physics
To create a shower of secondary radiation, the cosmic radiation interacts with
atoms
electrons
protons
neutrons
Author: rikazzz Comment
Atomic and Nuclear Physics
The greatest penetration power is of which one?
gamma rays
alpha rays
beta rays
neutrons
Author: rikazzz Comment
Atomic and Nuclear Physics
In nuclear fission, as compared to the original mass of the heavy nucleus, the total mass of the product is
equal
more
less
zero
Author: rikazzz Comment
Atomic and Nuclear Physics
The SI unit for radioactivity is
farad
Pascal
Becquerel
ammeter
Author: rikazzz Comment
Atomic and Nuclear Physics
The radiation which does not change its direction is
β radiation
α radiation
γ radiation
no radiation
Author: rikazzz Comment
Atomic and Nuclear Physics
In fission, the mass of products is
less than original nucleus
more than original nucleus
equal to original nucleus
all of above
Author: rikazzz Comment
Atomic and Nuclear Physics
The chemical compounds to explore the metabolism of chemical reactions inside the human body, animals or plants containing some quantity of radioisotopes are called
radioactive endoscope
radioactive tracers
radioactive fusion
radioactive atoms
Author: rikazzz Comment
Atomic and Nuclear Physics
The atoms of an element which have the same number of protons but different number of neutrons in their nuclei are known as
ions
isotopes
radiant
electrons
Author: rikazzz Comment
Atomic and Nuclear Physics
The safe level of radiation exposure per year is
1.0 rem
2.0 rem
5.0 rem
4.0 rem
Author: rikazzz Comment
Atomic and Nuclear Physics
The activity of a sample of radioactive bismuth decreases to one-eighth of the original in 15 days. Its half-life is
10 days
15 days
3 days
5 days
Author: rikazzz Comment

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