Nuclear Physics Science - Nuclear Physics

Total energy radiated by Sun is about ____

The temperature of the interior of Sun is about _____.

The only reactor in the world which uses U-233 as fuel is _____.

In fast breeder, the coolant system used is _____.

A hydrogen bomb is based on the principle of _____.

The energy released in a nuclear fission process is about ______

The total nuclear power operating sites in India is _____.

The first nuclear reactor built in India was _____.

Assertion: Gamma rays, penetrates through materials most effectively.
Reason: Gamma rays, which have the shortest wavelengths of all electromagnetic radiation.
(a) If both the assertion and the reason are true and the reason is the correct explanation of the assertion.
(b) If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
(c) If Assertion is true, but the reason is false.
(d) If Assertion is false, but the reason is true.
(e) If the Assertion and reason both are false.

Assertion: Artificial radioactivity is a controlled process.
Reason: It is a spontaneous process – natural radioactivity.

Assertion: An enormous amount of energy is released which is called stellar energy.
Reason: Fusion reaction that takes place in the cores of the Sun and other stars.
(a) If both the assertion and the reason are true and the reason is the correct explanation of the assertion.
(b) If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
(c) If Assertion is true, but the reason is false.
(d) If Assertion is false, but the reason is true.
(e) If the Assertion and reason both are false

Assertion: Alpha, beta and gamma radiations are emitted.
Reason: Nuclear fission process can be performed at room temperature.
(a) If both the assertion and the reason are true and the reason is the correct explanation of the assertion.
(b) If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
(c) If Assertion is true, but the reason is false.
(d) If Assertion is false, but the reason is true.
(e) If the Assertion and reason both are false

Assertion: Moderator is used to slowing down the high energy neutrons to provide slow neutrons.
Reason: Cadmium rods are used as control rods.
(a) If both the assertion and the reason are true and the reason is the correct explanation of the assertion.
(b) If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
(c) If Assertion is true, but the reason is false.
(d) If Assertion is false, but the reason is true.
(e) If the Assertion and reason both are false.

What is the safe limit of receiving radioactive radiations?

Write down the types of the nuclear reactor.

Define ‘Nuclear fusion’ Give an example.

Define ‘nuclear fission’ Give an example.

State the value of Roentgen in terms of Coulomb.

Name two radioactive elements that are not found in observable quantities why is it so?

Why are the control rods made of cadmium?

Is there any difference between electron and a beta particle.

Why is neutron so effective as bombarding particle?

Write a note about stellar energy.

Write down the medical and industrial application of radioisotopes?

Write down the features of nuclear fission and nuclear fusion.

State and define the units of radioactivity.

Explain the principle and working of an atom bomb?