Atomic and Nuclear Physics

Atomic and Nuclear Physics
The temperature at the center of the Sun is nearly
20 million Kelvin
10 million Kelvin
30 million Kelvin
25 million Kelvin
Author: rikazzz Comment
Atomic and Nuclear Physics
In alpha decay (α-decay) the proton number of the parent nuclide
increases by 2
increases by 1
decreases by 2
decreases by 4
Author: rikazzz Comment
Atomic and Nuclear Physics
Per year safe limit of radiation exposure is
5 rem
10 rem
7 rem
15 rem
Author: rikazzz Comment
Atomic and Nuclear Physics
The process of emission of natural radiation from some elements is called
radioactivity
degeneracy
transmutation
radio transmutation
Author: rikazzz Comment
Atomic and Nuclear Physics
The radiation emitted from uranium salt can
DE stable the electrons
break the protons
make the protons
ionize the gas
Author: rikazzz Comment
Atomic and Nuclear Physics
Beta particles are stream of high energy
electrons
protons
photons
positrons
Author: rikazzz Comment
Atomic and Nuclear Physics
In air, alpha particles have range of
few centimeters
several thousand meters
several hundred meters
several meters
Author: rikazzz Comment
Atomic and Nuclear Physics
Isotopes have same number of protons but different number of
electrons
neutrons
shells
positrons
Author: rikazzz Comment
Atomic and Nuclear Physics
The radiation which strongly interacts with the matter due to its charge and has a short-range as compared to gamma radiations is
alpha radiation
beta radiation
no radiation
gamma radiation
Author: rikazzz Comment
Atomic and Nuclear Physics
Gamma (γ) radiation are fast moving
electrons
protons
photons
neutrons
Author: rikazzz Comment

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