3442. Nuclides having the same atomic numbers are termed as
isotopes
isomers
isotones
isobars
✅ The correct answer is option B.
3446. The radioisotope used to study the thyroid gland is
iodine
cobalt
iron
carbon
✅ The correct answer is option A.
3413. Coolant present in the primary circuit of a pressurised water reactor is high pressure
sub cooled water
saturated water
superheated steam
saturated steam
✅ The correct answer is option B.
3418. A fertile material is the one, which can be
converted into fissile material on absorption of neutron.
fissioned by slow (thermal) neutrons.
fissioned by fast neutrons.
fissioned by either slow or fast neutrons.
✅ The correct answer is option A.
3423. Absorption/scattering cross-section of an element is expressed in “barn”, which is equivalent to
10-24 cm2
10-12 cm
1 Angstrom
10-24 cm
✅ The correct answer is option A.
3429. In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous
uranium oxide
uranium hexaflouride
uranium carbide
uranium sulphate
✅ The correct answer is option B.
3435. When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as
isomers
isotopes
isobars
isotones
✅ The correct answer is option D.
3440. The decrease in the atomic number is not observed in case of
electron capture
β-emission
α-emission
positron emission
✅ The correct answer is option B.
3410. Specific gravity of uranium and plutonium is about
9
13
19
27
✅ The correct answer is option C.