Nuclear Physics
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Nuclear Physics
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13 Questions

1. Out of the following which is not emitted by a radioactive substance?
2. Which of the following type of radiation does not originate within the nucleus?
3. A radioactive element emits an alpha particle. The mass number of the element, after emission
4. In a nuclear reactor the moderator is used to
5. Match the following: List I List II A Moderator 1. Uranium B Nuclear fuel 2. Graphite C Coolant 3. Cadmium D Control rod 4. Liquid Sodium Codes A B C D
6. The half-life of a radioactive substance depends upon
7. Graphite and heavy water are two common moderators used in a nuclear reactor. The function of the moderator is to
8. In a fusion reaction,
9. Cadmium rods are used in a nuclear reactor
10. Choose the incorrect statement from the following:
11. Two radioactive sources A and B initially contain equal number of radioactive atoms. Source A has a half life of 1 h and source B 2 h. At the end of 2 h, the ratio of the rate of disintegration of A to that of B will be
12. The nucleus of an atom consists of
13. The velocity of neutron in a nuclear reactor is retarded by

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