Nuclear Power Engineering
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

3/4th of it will disintegrate in two months
It will completely disintegrate in four months
L/8th of it will remain intact at the end of four months
It will completely disintegrate in two months

ANSWER DOWNLOAD EXAMIANS APP

Nuclear Power Engineering
Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher

All of these
Melting point, hence can be subjected to higher temperature
Density ; hence core volume for a given power output would be smaller
Resistance to effects of irradiation

ANSWER DOWNLOAD EXAMIANS APP