Nuclear Energy

Multiplication factor or reproduction factor $K$ for a nuclear reactor is defined as number of fission reactions produced by a given generation of neutrons to the number of fission reactions in the preceding generation. What should be the value of $K$ for the following purposes?

i. To keep the nuclear fission reaction self-sustaining.

ii. To switch off the nuclear reactor.

Draw a schematic labelled diagram of a nuclear reactor based on thermal neutron fission. What is a moderator? Give two examples of moderator. Write a few lines on controlled thermonuclear fission.

Explain the principle and working of a nuclear reactor with the help of a labelled diagram. A nuclear power reactor generates electric power of $100\mathrm{MW}$. How many numbers of fission occur per second if the nuclear fuel used is the reactor is uranemium.

A nuclear reactor delivers a power of ${10}^9 \mathrm{W}$. What is the amount of fuel consumed by the reactor in one hour ?

Define term fusion in Nuclear energy.

Define the term Nuclear fission.

Describe the functions of coolant in the nuclear reactor.

What are the different components of a nuclear reactor?

The energy released when $3 \mathrm{g}$ of material is completely converted into energy during a nuclear reaction is (given, speed of light = $3\times {10}^8 \mathrm{m}/\mathrm{s}$):

Which one of the following is an example of Biomass energy source.

For a nuclear reactor $48 \mathrm{KJ}$ of energy is produced per minute. If the energy released per fission is $3.2\times {10}^{-11} \mathrm{J}$ then the number of fissions which would be taking place in a reactor per second is

The amount of material that releases $4.5\times {10}^{14} \mathrm{J}$ of energy when it is completely converted into energy during a nuclear reaction. [Given speed of light = $3\times {10}^8 \mathrm{m}/\mathrm{s}$]

In which place of Gujarat, the nuclear power reactor is situated?

Which of the following elements is most widely used for nuclear fission?

_____ atomic power station is the first nuclear power station in India.

Which of the following is/are correct?
i. Chain reaction takes place in a nuclear reactor and an atomic bomb.
ii. The chain reaction in a nuclear reactor is controlled.
iii. The chain reaction in a nuclear reactor is not controlled.
iv. No chain reaction takes place in an atom bomb.

_____ is the other name (short name) of the reactor which is located at Kalpakkam.

Kamini reactor is located at

The diagram given below shows nuclear fission in $\mathrm{U}-235$. 

Which of the following observations is not true?

Control rods absorb _____ to control the chain reaction.