Nuclear Fission
Nuclear Fission: Overview
This Topic covers sub-topics such as Nuclear Fission, Nuclear Fission Reaction, Fissionable Materials, Nuclear Chain Reaction, Critical Mass, Controlled Nuclear Chain Reaction, Uncontrolled Nuclear Chain Reaction and, Fertile Materials
Important Questions on Nuclear Fission
Critical mass depends on the nature and size of the fissile material.
What does critical mass to sustain reaction mean?
All uranium isotopes undergo nuclear fission.
Name any three fertile material in nuclear reactor.
Fertile material is a material that can be converted into a fissile material by neutron absorption and subsequent nuclei conversions.
What is fertile material in nuclear reactor?
How is nuclear reaction controlled in a nuclear reactor?
Most reactors are controlled by means of control rods that are made of a strongly neutron-absorbent material such as boron or cadmium.
What is controlled nuclear reaction? Explain with an example.
Thorium and plutonium are fertile materials.
Uranium - is an example for fertile materials.
If the mass is less than the critical mass, it is termed as supercritical and if it is more than the critical mass, it is termed as subcritical.
The _____ mass is the minimum mass of a fissile material necessary to sustain the chain reaction.
A slow moving neutron can cause fission in .
What is meant by nuclear fission? Why a nuclear fission chain is not self sustained? Explain what is to be done to make a chain reaction sustained?
