Nuclear Reactor

What type of nuclei is (preferably) needed for slowing down fast neutrons?

A chain reaction is possible when the mass of the fuel is greater than the

Nuclear reactor drive the propellers of ships otherwise to turn the shafts of electrical _____.

What is the underlying principle of the atomic bomb in respect of nuclear energy.

Cadmium rods are used in a nuclear reactor for

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.

In a nuclear power station, a moderator is required to
 

The primary purpose of the coolant in a nuclear reactor is to reduce the danger of overheating the structure of the reactor.

The thermal power of a uranium reactor is $100 \mathrm{MW}.$ Energy released in each fission is $200 \mathrm{MeV}$ and the average number of neutrons released per fission is about $3.$ The number of neutrons released per second by the reactor is nearly

In a nuclear reactor, moderators slow down the neutrons which come out in a fission process. The moderators used have light nuclei. Heavy nuclei will not solve the purpose because

Fast neutrons can easily be slowed down by:

In a nuclear reactor, mass decay at the rate of $1 \mathrm{mg} {\mathrm{s}}^{-1}$. The power generated in kilowatt is

Fast neutrons can easily slowed down by :-

An atomic power nuclear reactor can deliver $300 \mathrm{MW}$. The energy released due to fission of each nucleus of a uranium atom ${\mathrm{U}}^{238}$ is $170 \mathrm{Me}V$. The number of uranium atoms fissioned per hour will be

Find out the mass of Uranium required per day operate $0.95 \mathrm{MW}$ nuclear power plant using  ${}_{92}\mathrm{U}^{235}$ fission.

How is a nuclear chain reaction controlled in a nuclear reactor?

What is a controlled nuclear chain reaction?

How can an uncontrolled nuclear chain reaction lead to atomic explosion?

What is an uncontrolled nuclear chain reaction?

If nuclear reactors can produce large amount of electrical energy from very small amount of nuclear fuel, then why are nuclear reactors not used more frequently?