Question

A group of students went on an educational tour of Bhabha Atomic Research Centre, Mumbai. They visited various nuclear reactors like Apsara, Cirus, Zerlina and Dhruv and observed that Apsara was a swimming pool type reactor. The teacher explained how water slows down fast moving neutrons and absorbs the heat produced in the reactor.

1. What is the use of a nuclear reactor?
2. What is the name given to a material which slows down fast moving neutrons?
3. State how a nuclear reactor can be shut down in case of an emergency.

Answer 1

1. A nuclear reactor can be used for many purposes, such as generating electricity, producing isotopes, and conducting research.
2. The substance that slows down rapidly moving electrons is called a moderator. substances such as graphite, water, heavy water, etc.
3. A nuclear reactor can be shut down in an emergency by inserting control rods and absorbing neutrons.