EASY
Diploma
IMPORTANT
Earn 100
Explain why in their experiment Geiger and Marsden used a beam of alpha particle that was very narrow.
Important Questions on Atomic, Nuclear and Particle Physics
MEDIUM
Diploma
IMPORTANT
Discuss what is meant by the statement that the energy of atoms is discrete.
EASY
Diploma
IMPORTANT
State the name of the force responsible for the defection of the alpha particles in Geiger and Marsden experiment The electrostatic force, Magnetic force, Strong gravitational force.
MEDIUM
Diploma
IMPORTANT
Describe the deflections of the alpha particles by the gold foil in Geiger and Marsden experiment.
HARD
Diploma
IMPORTANT
Outline how the results of the Geiger and Marsden experiment led to the Rutherford model of the atom.
EASY
Diploma
IMPORTANT
Radioactive decay is random and spontaneous. State what you understand by this statement.
MEDIUM
Diploma
IMPORTANT
The nuclei of thorium are at rest when they decay. Determine the fraction of the energy released that is carried by the alpha particle.
MEDIUM
Diploma
IMPORTANT
The binding energy curve is shown below;
Suggest why most nuclei with have roughly the same binding energy per nucleon.
MEDIUM
Diploma
IMPORTANT
Using the binding energy curve (Average binding energy per nucleon vs mass number) shown above explain why energy is released in nuclear fusion.
