Tritium emits electrons and magnesium emits positrons. Represent the
two decay processes by equations and calculate in each case the end-point energy of the particles emitted.
Given:
We are given two decay processes: --- ### 1. Tritium $\left( ^3_1\text{H} \right)$ emits electrons (beta-minus decay): #### Decay Equation: $$ ^3_1\text{H} \rightarrow ^3_2\text{He} + e^- + __________ _____ ________ _________ ______ ____ ________ _______ __________ _________.
_________ __________ _______ __________ _____ ______ ____ _______ __________ ____ _____.
________ _____ _____ _______ _______ ___ _________ ____ _______ ____.
________ _________ __________ _______ __________ __________ ____ _________ _____.
____ __________ ________ _____ ______.
_____ ________ ____ _____ _______ ___ _________ ________ ______ ______.
_______ _________ ___ ______ __________ __________ _________ ______ ______ ___ ___.
___ __________ _____ _____ ____ ____ ______ _______ _________ ________ _______ ______.
____ _____ _____ __________ _______ _____ ____.
____ ____ ____ ___ _____ _______ _______ ___ ____ ___.
____ _________ ________ _____ ___ ________ _________ ______ _____ _________ __________.
______ ___ _____ ______ _______ ________.
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Explain tensor potential which justifies the non – zero quadrupole moment of deuteron.
The mass defects forCalculate
the corresponding atomic mass.
On the basis of semi-empirical mass formula, explain as why there are two mass parabola for even-A nuclei and only one for A-odd nuclei.
A compound nucleus has a neutron resonance at 75 eV which is produced through a neutron entrance channel. The resonance state mainly decays through a neutron, gamma and alpha channel with the partial decay widths as
, respectively. Estimate the cross section for
reactions.
List the quantum numbers for the antiquark
State the
quark content for and p.
A human body contains 0.245kg of normal potassium (K) of which 0.015 percent isthe radioactive beta emitter potassium-40 Calculate therate of production of
-particles in the body from the decay of potassium-40. What is the activity?
Using the effective range formula, evaluate the total n-p scattering cross-section for a neutron interacting with a free proton in a laboratory at 10MeV.
Given: scattering lengths:
Effective range: