2076 A / 2060 S
Calculate the binding energy per nucleon of $_{26}{Fe}^{56}$. Atomic mass of $_{26}{Fe}^{56}$ is $55.9349 \;u$ and that of $_1H^1$ is $1.00783\;u$. Mass of $_0 n^1 = 1.00867\;u$ and $1u = 931\;MeV$. [Click here for Solution]
2076 C
Calculate the binding energy per nucleon of calcium nucleus $(_{20}{Ca}^{40})$.
Given, Mass of $_{20}{Ca}^{40} = 39.962589\;u$; Mass of neutron $m_n = 1.008665\;u$; Mass of proton $m_p = 1.007825\;u$; $1\;u = 931\;MeV$. [Click here for Solution]
2075 A
A city requires $10^7 watts$ of electrical power on the average. If this is to be supplied by a nuclear reactor of efficiency $20\; \%$. Using $_{92}{U}^{235}$ as the fuel source, calculate the amount of fuel required per day (Energy released per fission $_{92}{U}^{235} = 200\;MeV$). [Click here for Solution]
2075 B / 2067 B
A nucleus of $_{92}U^{238}$ disintegration according to $_{92}{U}^{238} \; \rightarrow\;\; _{90}{Th}^{234} \; + \; \; _{2}{He}^{4}$. Calculate,
(i) the total energy released in the disintegration process.
(ii) the K.E. of the $\alpha - particle$, the nucleus at rest before disintegration.
Given, Mass of $_{92}U^{238} = 3.859 * 10^{-25}\;kg;$ Mass of $_{90}{Th}^{234} = 3.787 * 10^{-25}\;kg$; Mass of $_{2}{He}^{4} = 6.648 * 10^{-27}\;kg$. [Click here for Solution]
2074 B
The mass of $_{17}{Cl}^{35}$ is $34.9800\,amu$. Calculate its binding energy and binding energy per nucleon. Mass of one proton = $1.007825\;amu$ and mass of one neutron = $1.008665 \; amu$. [Click here for Solution]
2073 S / 2072 D / 2068 A / 2064
The energy liberated in the fission of a single uranium-235 atom is $3.2 * 10^{-11}\;J$. Calculate the power production corresponding to the fission of $1\;gm$ of uranium per day. Assume Avogadro constant as $6 * 10^{23}\;mol^{-1}$. [Click here for Solution]
2073 D
What will be the amount of energy released in the fusion of three alpha particles into a $C^{12}$ nucleus if mass of $He^{4}$ and $C^{12}$ nuclei are respectively $4.00263\;amu$ and $12\;amu$. [Click here for Solution]
2072 S / 2069 B
The mass of the nucleus of the isotope Lithium $_3{Li}^7$ is $7.014351\;u$. Find its binding energy and binding energy per nucleon. (Given mass of proton = $1.00727\;u$; Mass of neutron = $1.008665 \;u$). [Click here for Solution]
2072 E
$_{28}{Ni}^{62}$ may be described as the most strongly bound nucleus because it has the highest B.E. per nucleon. Its neutral atomic mass is $61.928349$ amu. Find its mass defect, its total binding energy and binding energy per nucleon.
Given, Mass of neutron $= 1.008665\;amu$; Mass of proton $ = 1.007825\;amu$; $1\;amu = 931.5 \; MeV$. [Click here for Solution]
2071 C / 2068 (Cancel)
The energy released by the fission of one $U^{235}$ atom is $200\;MeV$. Calculate the energy released in Kwh, when one gram of uranium undergoes fission. [Click here for Solution]
2071 D
Calculate the binding energy per nucleon for a helium nucleus. Given that mass of helium nucleus = $4.001509\;amu$, mass of proton = $1.007277\;amu$ and mass of neutron = $1.008666\;amu$. [Click here for Solution]
2070 S
The most common isotope of uranium $_{92}U^{238},$ has atomic $238.050783\;u$. Calculate,
a) Mass defect; b) Binding Energy; c) Binding energy per nucleon.
(Mass of proton $= 1.007825 \; u$, Mass of neutron $ = 1.008665\;u$) [Click here for Solution]
2069 B
Estimate the binding energy per nucleon of $_3{Li}^7$. Mass of $_3{Li}^7$ a proton and a neutron are respectively $7.01435\;amu$, $1.00728\;amu$ and $1.00876\;amu$. [Click here for Solution]
2068 Old
Assume that about $200\;MeV$ energy is released per fission of $_{92}{U}^{235}$ nuclei, what would be the mass of $U^{235}$ consumed per day in the fission of power $1\;Mw$ approximately. [Click here for Solution]
2054
The energy liberated in the fission of a single uranium - 235 atom is $3.2 * 10^{-11}\;J$. Calculate the power production corresponding to the fission of $1\;kg$ of uranium per day. [Click here for Solution]
2052
Calculate the Q-value of the reaction and mention the type of reaction (endo-thermic or exo-thermic)
$_2{He}^{4} = 4.00377\;amu$ $_8{O}^{17} = 17.00450\;amu$
$_7{N}^{14} = 14.00738\;amu$ $_1{H}^{1} = 1.00814\;amu$ [Click here for Solution]
2052
Calculate the speed of practice of the mass of it is equal to $5$ times its rest value. [Click here for Solution]
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