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Atomic and Nuclear Physics
In the air, the alpha particle has a range of several
centimeters
thousand meters
hundred meters
meters
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Atomic and Nuclear Physics
Nucleons are a collection of
electrons and protons
electrons and neutrons
protons and neutrons
protons and positrons
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Atomic and Nuclear Physics
The simplest atom with a single proton is of
nitrogen
helium
carbon
hydrogen
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Atomic and Nuclear Physics
The radiations that can ionize the matter are
alpha radiations
gamma radiations
beta radiations
all of above
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Atomic and Nuclear Physics
If the half-life of the radioactive element is T
1/2
 then at the end of this time the number of atoms in the sample will become
one quarter
double
half
triple
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Atomic and Nuclear Physics
In each fission event, the energy released is about
100 MeV
300 MeV
400 MeV
200 MeV
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Atomic and Nuclear Physics
Nuclei bombarded with protons, neutron or alpha particles are changed to
isotopes
radioisotopes
element having atomic number less than 82
none of above
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Atomic and Nuclear Physics
When alpha and beta particles are slowed down by collisions, they become
harmful
harmless
useful
expensive
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Atomic and Nuclear Physics
Radiation that causes redness and sores on the skin is
gamma only
beta only
alpha
gamma and beta
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Atomic and Nuclear Physics
When two light nuclei combine to form a heavier nucleus, the process is said to be
nuclear fission
nuclear fusion
nuclear power
nuclear transmutation
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