Nuclear Power Engineering
Which of the following is present in Bhabha Atomic Research Centre (BARC) complex, Trombay (Bombay)?

Heavy water plant
Power reactor
Fast breeder reactor
Research reactor

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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

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

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