A sample of pitchblende contains 50 kg uranium. The half-life of uranium is 4.5 109yr.The atomic weight of uranium is 238.4. The total number of uranium atoms in the beginning is 1.269 1026atoms. Calculate the age of the sample.
Draw the schematic diagram of a nuclear fission reactor. Write its general features. Discuss the role of a fast breeder reactor.
A sample of pitchblende contains 50 kg uranium. The half-life of uranium is 4.5 109yr.The atomic weight of uranium is 238.4. The total number of uranium atoms in the beginning is 1.269 1026atoms. Calculate the age of the sample.
What is quantum tunneling? Calculate (i) the tunneling length and (ii) the tunneling probability when an electron of energy 4.0 eV is incident on a potential barrier of height 10 eV and width of 0.2 nm.
The wave function of a particle is given by:
Calculate (i) the normalisation constant N, and
(ii) probability of finding the particle in the region a
Calculate the linear momentum, kinetic energy and total energy (in J and MeV) of a particle travelling with speed 0.90c given that its rest mass is 1.6810 kg-27 and 1 MeV 1.6 10-13J.
Write down the wave function for the first excited state of a particle in a one dimensional box of length L. Calculate x
and
px
for this state.
Draw a curve of binding energy per nucleon as a function of mass number and explain the main characteristics of elements and also the phenomena of nuclear fission and fusion.