3576. The half life period of a radioactive element depends on its
temperature
pressure
amount
none of these
✅ The correct answer is option D.
3582. The phenomenon of nuclear fission is opposite to that of
radioactive decay
thermionic emission
nuclear fusion
combustion
✅ The correct answer is option C.
3584. Which one is radioactive in nature ?
Helium
Deuterium
Heavy hydrogen
Tritium
✅ The correct answer is option D.
3587. A nuclear reactor can’t be used for
the production of radioisotopes.
supplying intense fields or beams of neutron for scientific experiments.
marine ship propulsion.
none of these.
✅ The correct answer is option D.
3590. The electric power generation cost in nuclear power plant is less than that in a coal based thermal power plant, mainly because the
fuel cost per unit power generated is less.
thermal efficiency of the former is higher.
maintenance cost of the former is less.
none of these.
✅ The correct answer is option A.
3557. 75% of a radioactive element decays in 6 hours. Its half life period is __________ hours.
3-Apr
1-Jun
3
4
✅ The correct answer is option C.
3562. A fast breeder reactor employs
graphite as moderator.
water as coolant.
molten sodium as coolant as well as moderator.
U-235 as fuel.
✅ The correct answer is option D.
3566. Nucleus of 92U235 contains __________ protons.
92
235
143
325
✅ The correct answer is option A.
3570. The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element ?
A+Z
A- Z
A
Z
✅ The correct answer is option B.
3577. MeV is the unit of
radioactivity
energy
potential difference
none of these
✅ The correct answer is option B.