Critical energy should be _______________ the neutron binding energy of the atom in order to initiate a nuclear fission?

Related Mcqs:

The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then____________?

A. 3/4th of it will disintegrate in two months B. It will completely disintegrate in two months C. It will completely disintegrate in four months D. 1/8th of it will remain intact at the end of four months...

Tarapur (INDIA) atomic power station____________________?

A. Has two boiling water reactors of American design B. Has an installed capacity of 400 MW C. Is the first power reactor in India, which became critical in 1969 D. All A., B. and C....

In β-decay of radioactive material, the ratio of neutron to proton____________________?

A. Increases B. Remain same C. Decreases D. Is unpredictable; may increase or decrease...

The atomic number of a radioactive element is not changed, when it emits _____________ rays?

A. α B. β C. γ D. α & β...

Absorption/scattering cross-section of an element is expressed in “barn”, which is equivalent to___________________?

A. 10-24 cm2 B. 10-12 cm C. 1 Angstrom D. 10-24 cm...