Which one is the radioactive isotope of hydrogen ?
Which one is the radioactive isotope of hydrogen ? A. Deuterium B. Ortho-hydrogenC. Tritium D. None of these
Which one is the radioactive isotope of hydrogen ? A. Deuterium B. Ortho-hydrogenC. Tritium D. None of these
Candu reactor is a ______________ nuclear reactor? A. Natural uranium fuelled heavy water cooled & moderated B. Highly enriched uranium (85% U-235) fuelled C. Homogeneous D. Fast breeder
Heavy water is used as a moderator in a _____________________? A. Pressurised water reactor (PWR) B. Boiling water reactor (BWR)C. Candu reactor D. Molten sodium cooled reactor
Which is a fertile nuclear fuel ? A. U-233 B. U-235 C. Pu-239D. Th-232
Enriched uranium means that, it contains___________________? A. More than 0.71% of U-235 B. Only fertile material C. Only fissile material D. No impurities
The decay product of tritium (a beta emitter) is_________________? A. LithiumB. Helium C. Deuterium D. Hydrogen
A radioactive isotope undergoes decay with respect to time following _____________ law? A. LogarithmicB. Exponential C. Linear D. Inverse square
‘Light water’ used as a coolant in nuclear reactor is nothing but______________________? A. Ordinary water B. Mildly acidic (pH = 6) water C. Mildly alkaline (pH = 8) water D. None of these
How many atoms are present in one gm-atom of an element ? A. 2 × 1023B. 6 × 1023 C. 6 × 1032 D. 5 × 105
Which of the following is a fuel for a fusion reactor (thermonuclear reactor) ? A. Deuterium and tritium B. U-233 C. Thorium D. Heavy water