1. Emission of β-particles during radioactive decay of a substance is from
2. 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
3. The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be __________ percent.
4. Pressure of CO2 gas (which is a coolant) in the Calder-Hall nuclear reactor is __________ kgf/cm2.
5. Research reactors are normally meant for
6. The most commonly used nuclear fuel in boiling water reactor is
7. The atomic mass of an element is fractional, because
8. Nuclear power generation capacity in India is
9. Gas cooling as compared to water cooling of nuclear reactors
10. Percentage of heavy water in ordinary water is around
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