Related Questions

In nuclear fission each neutron that causes fission releases
A No new neutron
B At least one new neutron
C One new neutron
D More than one new neutron
The process by which a heavy nucleus is spitted into two light nuclei is known as
A Splitting
B Fission
C Fusion
D Disintegration
Energy produced in the nuclear fission is of the order of __________ MeV.
A 20
B 200
C 1000
D 2000
Their cells have a very well defined nucleus ,in which nuclear material (chromosomes or DNA) is enclosed in double nuclear membrane.
A Prokaryotes
B Bacterial
C Viral
D Eukaryotes
A rigid body, under the action of external forces, can be replaced by two masses placed at a fixed distance apart. The two masses form an equivalent dynamical system, if
A The sum of the two masses is equal to the total mass of body
B The center of gravity of the two masses coincides with that of the body
C The sum of mass moment of inertia of the masses about their center of gravity is equal to the mass moment of inertia of the body
D All of the above
The rainfall due to upward movement of air caused by convergence of cold air masses against warm air masses is called ________.
A Cyclonic rainfall
B Orographic rainfall
C Frontal rainfall
D Convectional rainfall
Critical energy should be __________ the neutron binding energy of the atom in order to initiate a nuclear fission.
A less than
B equal to
C either more or less
D more than
In nuclear fission
A The original elements change into completely different elements
B The electrons of the element change
C The molecules rearrange themselves to form other molecules
D None of the above
An element having large number of __________ is most easily subjected to nuclear fission.
A Protons
B Electrons
C Neutrons
D Nucleons
Which of the following accounts for the maximum energy release in the nuclear fission process?
A Kinetic energy of fission products
B Radioactive decay of fission products
C Instantaneous release of γ-rays
D Kinetic energy of neutrons

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