A. 9.31 MeV
B. 931 eV
C. 931 Mev
D. 931 J
Related Mcqs:
- Energy equivalent to one atomic mass unit (amu) is ______________ MeV?
A. 9.31
B. 93.1
C. 931
D. 9310 - 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 - 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 - Graphite is used in nuclear reactor as_____________________?
A. Insulation lining of the reactor
B. Fuel
C. Lubricant
D. Retarder of neutron velocity - A control rod________________?
A. Should have small absorption cross-section
B. Is generally made of boron, hafnium or cadmium
C. Should have large absorption cross-section
D. Both B. and C. - The phenomenon of radioactivity was discovered by___________________?
A. Madam Curie
B. Becquerel
C. Roentgen
D. J.J. Thomson - Pick out the wrong statement?
A. Atoms with same number of nucleons but different number of protons are called isobars
B. Atoms with same number of protons but different number of nucleons are called isoters
C. Out of α, β, and γ-rays, the one having maximum penetration power are γ-rays
D. The product formed by emission of α-particle has mass number less by 4 units than the parent nuclide - Quantity of fissionable material (i.e. U-235) in natural uranium is _____________ percent?
A. 0.71
B. 6.31
C. 99.29
D. 12.73 - Which is not a fissile nuclear material ?
A. U-233
B. U-235
C. U-238
D. Pu-239 - Both tritium and deuterium have the same number of_______________?
A. Neutrons
B. Electrons
C. Protons
D. Nucleons
